Deep within the labyrinthine canyons of northern Arizona lies a paradisiacal oasis that seems almost otherworldly in its beauty—Havasu Falls. Located on the sovereign lands of the Havasupai Tribe, whose name translates to “people of the blue-green water,” this magnificent waterfall and its surrounding environment represent one of the most breathtaking natural wonders in the American Southwest. The striking turquoise waters of Havasu Creek cascade nearly 100 feet over rust-colored travertine cliffs into crystal-clear pools below, creating a mesmerizing contrast against the red sandstone walls of Havasu Canyon, a tributary of the Grand Canyon.
The Havasupai Reservation encompasses approximately 188,077 acres of arid plateau and deeply incised canyons, with its main village of Supai situated eight miles from the nearest road—making it one of the most remote communities in the continental United States. While administratively separate from Grand Canyon National Park, these tribal lands contain some of the most spectacular scenery in the greater Grand Canyon ecosystem. The reservation’s boundaries include not only Havasu Falls but also several other equally impressive waterfalls: Navajo Falls, Fifty Foot Falls, Mooney Falls, and Beaver Falls, collectively creating a waterfall corridor unparalleled in the American desert.
The centerpiece of the area, Havasu Falls, is a breathtaking 90-foot waterfall cascading into a bright turquoise pool surrounded by lush vegetation and red rock cliffs. Visitors can swim in the cool, refreshing waters, relax along the sandy shores, or simply enjoy the mesmerizing beauty of the falls. The sound of rushing water and the serene setting make it a perfect spot to unwind.
For those who prefer not to hike, helicopter rides are available to transport visitors between Hualapai Hilltop and Supai Village. The ride provides stunning aerial views of the canyon and surrounding desert landscapes, offering a unique perspective on this incredible area. It’s also a convenient option for those with limited time or physical restrictions.
Beyond the major waterfalls, Havasu Creek is full of hidden pools, side canyons, and unique formations waiting to be discovered. Adventurous visitors can explore less-traveled areas of the creek to find secluded spots for swimming and relaxing. Be respectful of the environment and follow marked trails to avoid causing damage to this fragile ecosystem.
The vivid turquoise waters of Havasu Creek are perfect for swimming. The pools at the base of Havasu Falls and the other waterfalls are calm and inviting, making them ideal for a refreshing dip. The mineral-rich water, which gets its blue-green color from calcium carbonate deposits, stays cool even on the hottest days, making it an unforgettable experience.
The Havasu Falls Campground is located along Havasu Creek, between Havasu Falls and Mooney Falls. Camping here allows visitors to fully immerse themselves in the beauty of the canyon. Fall asleep to the sound of rushing water, wake up to stunning canyon views, and enjoy the peacefulness of this remote area. The campground is primitive, so visitors must bring their own gear and supplies, but the experience of camping in the canyon is unmatched.
Havasu Falls is part of a larger network of trails that offer incredible hiking opportunities. The main hike is the 10-mile trail from Hualapai Hilltop to the falls, which takes visitors through stunning desert landscapes and into the lush canyon. Additional hikes include:
Hiking here requires preparation due to the rugged terrain and desert heat, but the views and experiences make it worthwhile.
Havasu Falls and its surrounding landscapes are a photographer’s dream. The vibrant turquoise water against the red rock cliffs creates a striking contrast that makes every moment picture-perfect. Capture:
The Havasupai people, known as the “People of the Blue-Green Waters,” have lived in the canyon for centuries. Visitors can learn about their culture and history by visiting the nearby Supai Village, which serves as the gateway to the falls. Respectful interactions with locals and an appreciation for their connection to the land make the experience even more meaningful.
Havasu Falls is a remote location with minimal light pollution, making it an excellent spot for stargazing. On clear nights, the Milky Way stretches across the sky, and you can see countless stars, constellations, and even shooting stars. Bring a blanket, lay back, and enjoy the beauty of the night sky in this serene desert setting.
The Loop Road connecting Wupatki and Sunset Crater Volcano National Monuments offers a scenic drive through striking desert and volcanic landscapes. This 35-mile route is a great way to soak in the natural beauty of the area.
Category | Details |
---|---|
Location | Havasupai Indian Reservation, near Supai Village, Arizona |
Managed By | Havasupai Tribe |
Waterfall Height | Approximately 100 feet (30 meters) |
Main Attractions | Stunning turquoise-blue waterfall, lush pools, and red rock canyon walls |
Ecosystem | Desert riparian oasis in the Grand Canyon region |
Water Source | Spring-fed Havasu Creek, which remains a constant turquoise color due to calcium carbonate and magnesium in the water |
Wildlife | Includes lizards, frogs, birds (e.g., canyon wrens), and small mammals in the surrounding area |
Recreation Activities | Hiking, swimming, photography, and camping near the falls |
Access | Requires a 10-mile hike (one way) from the trailhead at Hualapai Hilltop to Supai Village, followed by a 2-mile hike to the falls |
Nearby Landmarks | Mooney Falls, Navajo Falls, Beaver Falls, and Supai Village |
Climate | Hot summers and mild winters; spring and fall are the best times to visit |
Camping | Camping is allowed in the designated campground between Havasu Falls and Mooney Falls; permits are required |
Permits and Fees | All visitors must obtain a permit from the Havasupai Tribe. Permits are highly sought after and must be reserved online in advance. Fees apply. |
Accessibility | Accessible only by hiking, horseback, or helicopter |
Fun Fact | The vibrant turquoise color of the water is caused by high levels of dissolved limestone, which also creates the travertine formations around the falls! |
What makes these falls particularly remarkable is the striking blue-green color of the water, a result of high concentrations of calcium carbonate and magnesium dissolved in the spring-fed waters that emerge from the Redwall Limestone aquifer. As the mineral-laden water flows over travertine formations, it continuously deposits new layers of these minerals, constantly reshaping the falls and creating the distinctive terraced pools that have made this area famous among photographers, adventurers, and nature enthusiasts.
For the Havasupai people, who have inhabited this region for over 800 years, these waters represent far more than a scenic attraction. They are the lifeblood of the tribe, a sacred resource that has sustained their community through centuries of traditional farming and now serves as the foundation of a carefully managed tourism program that provides vital economic support while preserving their cultural heritage and control over ancestral lands. Their stewardship of this extraordinary landscape offers visitors a unique opportunity to experience one of America’s natural treasures under the guidance of those who know it most intimately.
Visiting Havasu Falls requires substantial planning, physical preparation, and respect for tribal sovereignty and regulations. Unlike many public lands in Arizona, access to this area is strictly limited through a tribal permit system that balances tourism with conservation and cultural preservation. This comprehensive guide explores the natural splendor, cultural significance, and practical considerations for those fortunate enough to secure permission to visit this remarkable destination.
Havasu Falls and the surrounding Havasupai Tribal Lands are situated on the south side of the Grand Canyon in Coconino County, Arizona. This remote area is physically isolated from the modern world, with the village of Supai standing as the only community within Havasu Canyon and one of the few remaining places in the United States where mail is still delivered by mule train.
The geographic isolation is defined by these key features:
Hualapai Hilltop: Located approximately 65 miles north of Route 66 (Interstate 40) near Peach Springs, this plateau-top trailhead at 5,200 feet elevation serves as the gateway to Havasupai lands. The hilltop features a helipad, parking area, and the starting point for the trail into the canyon.
Havasu Canyon: A major side canyon that joins the Colorado River at the Grand Canyon, characterized by dramatic red sandstone walls rising 2,000-3,000 feet from the canyon floor.
Village of Supai: The tribal community sits at an elevation of 3,200 feet, approximately 8 miles from Hualapai Hilltop via a trail that descends 2,000 feet into the canyon. The village serves as the administrative center for visitors and is home to approximately 650 Havasupai tribal members.
Havasu Falls: Located approximately 2 miles downstream from Supai village, the falls sit at the beginning of a sequence of spectacular waterfalls along Havasu Creek.
Access to this remote paradise requires significant effort:
Hiking: The most common approach involves a strenuous 10-mile hike from Hualapai Hilltop to Havasu Falls (8 miles to Supai village plus 2 additional miles to the falls). The trail begins with a steep 1.5-mile descent via switchbacks, followed by 6.5 miles of gradual descent through the dry Hualapai Canyon before reaching Supai village.
Helicopter: Limited helicopter service operates between Hualapai Hilltop and Supai village (weather permitting), primarily serving tribal members but also available to tourists on a first-come, first-served basis. Flights operate only on specific days, typically Thursday through Sunday.
Pack Animals: The tribe offers mule and horse packing services for transporting gear and occasionally riders, though reservations must be made well in advance.
No roads lead to Supai or the falls, which has preserved the area from overdevelopment while creating a genuine wilderness experience that begins with the journey itself.
The geological story of Havasu Falls and the surrounding canyon system spans hundreds of millions of years, revealing itself in the dramatic rock layers exposed by erosional forces. The key geological features include:
Canyon Stratigraphy: Havasu Canyon cuts through the classic Grand Canyon geological sequence, exposing layers from the 250-million-year-old Kaibab Limestone at the rim down through the Coconino Sandstone, Hermit Shale, Supai Group, and Redwall Limestone. Each layer tells a story of ancient environments, from shallow seas to vast deserts.
Redwall Limestone Aquifer: This massive limestone formation serves as the regional aquifer, where rainwater percolating through the plateau emerges as springs that feed Havasu Creek. The water percolates through limestone, becoming saturated with calcium carbonate and magnesium, which gives the water its distinctive blue-green color.
Travertine Formations: The defining feature of Havasu Falls is the travertine—a form of limestone deposited by mineral springs. As the mineral-rich water flows and is aerated at the falls, carbon dioxide is released, causing calcium carbonate to precipitate out of solution and deposit onto surfaces. This ongoing process constantly reshapes the falls and creates the terraced pools below.
Dynamic Landscape: The appearance of the falls can change dramatically over time due to both the gradual buildup of travertine and catastrophic flash floods that periodically reshape the canyon. Major floods in 1910, 1990, 2008, and 2018 significantly altered the configuration of the falls and surrounding features.
The most striking geological phenomenon—the vibrant turquoise-blue water—results from the interplay between the mineral composition of the water and light reflection. The high concentration of calcium carbonate creates tiny particles suspended in the water that reflect the blue wavelength of sunlight while absorbing other colors, producing the surreal blue-green hue that seems almost artificially enhanced but is entirely natural.
Havasu Creek is the lifeblood of both the natural ecosystem and the Havasupai community. This remarkable waterway features:
Origin and Flow: The creek emerges from springs in the Redwall Limestone approximately 3 miles above Supai village. The steady year-round flow averages about 28 million gallons daily—relatively stable because it comes from a large regional aquifer rather than depending solely on seasonal rainfall.
Water Properties: Beyond its striking color, the water maintains a nearly constant temperature of approximately 70°F (21°C) year-round. The mineral content creates water with high alkalinity and hardness but relatively good drinking quality (though treatment is recommended).
The Falls Sequence: Traveling downstream from Supai village, visitors encounter a series of increasingly dramatic waterfalls:
Riparian Ecosystem: The creek creates a verdant corridor through the desert canyon, supporting a diverse ecosystem of cottonwood trees, willows, cattails, and other water-loving vegetation that contrasts dramatically with the arid environment of the surrounding canyon walls.
The watershed faces various environmental challenges, including the impacts of upstream water withdrawal and climate change on the aquifer system, as well as flash flood events that periodically remake the landscape. The catastrophic flood of 2008 completely altered the appearance of several falls, demonstrating the dynamic nature of this environment.
Havasu Creek creates a narrow band of lush riparian habitat winding through an otherwise arid desert canyon, forming a biological oasis characterized by remarkable ecological diversity. This riparian zone presents a dramatic example of what ecologists call an “edge effect,” where two distinct ecosystems meet—in this case, the water-rich creek environment and the arid desert canyon—creating a third ecosystem with higher species diversity than either of the bordering systems.
The unique hydrology of this system creates several distinct ecological zones:
Aquatic Zone: The creek itself supports a variety of aquatic organisms adapted to the mineral-rich, warm waters. The travertine-depositing properties of the water create unique microhabitats with constantly changing substrates.
Riparian Corridor: Extending outward from the creek’s edges, this zone features water-dependent vegetation that creates critical wildlife habitat. The corridor varies in width from just a few meters in narrow canyon sections to over 100 meters in broader areas near the falls and pools.
Canyon Walls and Talus Slopes: Rising steeply from the riparian zone, these areas support desert-adapted plants that can anchor in rock crevices and survive with minimal soil and water.
Plateau Rim: Though not directly part of the falls area, the ecosystem at the canyon rim influences the watershed through water percolation and occasional runoff events.
This ecological gradient creates a remarkable concentration of biodiversity within a relatively small geographic area, making Havasu Canyon a natural laboratory for understanding desert riparian ecosystems and their resilience.
The plant communities surrounding Havasu Falls exemplify the stark contrast between water-rich and water-limited environments in the desert Southwest:
Riparian Trees and Shrubs:
Riparian Understory Plants:
Desert Plants on Canyon Walls:
Traditional Use Plants:
The Havasupai people have historically cultivated crops in the fertile canyon floor, including corn, beans, squash, peaches, and figs—agricultural traditions that date back centuries. Modern tribal farms still operate in portions of the canyon, though at a reduced scale compared to historical practices.
The plant communities face challenges from introduced species, particularly tamarisk (salt cedar), which has invaded portions of the riparian corridor and requires ongoing management efforts. Climate change presents an additional threat, potentially altering the delicate balance of this desert oasis through changes in temperature, precipitation patterns, and water availability.
The diverse habitats created by Havasu Creek support a remarkable variety of wildlife, concentrated in this narrow life-giving corridor through the desert:
Mammals:
Birds:
Reptiles and Amphibians:
Fish:
Invertebrates:
Wildlife viewing opportunities vary seasonally, with spring and fall typically offering the best combination of comfortable temperatures and animal activity. Dawn and dusk provide optimal viewing times, when many desert species are most active. The presence of the campground and regular human visitation has habituated some wildlife, particularly squirrels and ravens, to human presence—creating both excellent viewing opportunities and challenges with animals seeking food from visitors.
The Havasupai people—Havasu ‘Baaja in their own language—have inhabited the Grand Canyon region for at least 800 years, with archaeological evidence suggesting an even longer presence dating back more than a millennium. As the traditional stewards of Havasu Canyon and the surrounding plateau, their cultural identity is inextricably linked to this landscape, particularly the life-giving waters of Havasu Creek.
Key aspects of Havasupai cultural heritage include:
Traditional Territory: Historically, the Havasupai practiced a seasonal migration pattern, farming in the canyon during summer months and hunting on the plateau during winter. Their traditional territory once encompassed approximately 1.6 million acres, extending from the San Francisco Peaks to the Colorado River and from the Little Colorado River to the Bill Williams Mountain.
Living Culture: The Havasupai maintain their distinctive language (part of the Yuman language family), artistic traditions, ceremonies, and deep knowledge of the canyon ecosystem. Their cultural practices continue to evolve while maintaining connections to traditional ways of life.
Agricultural Traditions: For centuries, the tribe has practiced floodplain agriculture in the fertile soil of the canyon bottom, developing sophisticated irrigation techniques using the consistent flow of Havasu Creek. Traditional crops include corn, beans, squash, sunflowers, and later, introduced fruit trees including peaches and figs.
Spiritual Connection: The blue-green waters of Havasu Creek hold profound spiritual significance, featuring prominently in traditional stories and ceremonies. The entire canyon landscape contains numerous sacred sites, though specific information about these locations is not typically shared with outsiders out of respect for their sanctity.
Artistic Heritage: Traditional Havasupai artistic expressions include basketry, beadwork, and distinctive musical traditions. Contemporary tribal artists continue these traditions while developing new forms that reflect their ongoing cultural evolution.
Visitors should understand that they are entering not just a beautiful natural area but a living cultural landscape that continues to sustain the Havasupai people. The tribe generously shares aspects of their heritage with respectful visitors while maintaining appropriate boundaries around sacred practices and sites.
The modern boundaries of the Havasupai Reservation reflect a complex history of displacement, persistence, and partial restoration:
Pre-Reservation Era: Prior to European contact, the Havasupai controlled vast territories in what is now northern Arizona, moving seasonally between the canyon and plateau lands.
Initial Reservation: In 1880, President Rutherford B. Hayes issued an executive order creating a reservation of just 518 acres confined to the canyon bottom—less than 1% of their traditional territory. This severely restricted the tribe’s traditional lifestyle by eliminating access to plateau hunting grounds.
Grand Canyon National Park Conflict: The establishment of Grand Canyon National Park in 1919 further complicated land issues, as park boundaries encompassed areas traditionally used by the Havasupai.
Land Restoration: After decades of advocacy, the Havasupai achieved a landmark victory with the passage of the Grand Canyon National Park Enlargement Act of 1975. This legislation returned 185,000 acres to the tribe, expanding the reservation to its current size of approximately 188,077 acres. While still only a portion of their ancestral lands, this restoration provided crucial plateau access and greater self-determination.
Modern Sovereignty: Today, the Havasupai Tribe operates as a federally recognized sovereign nation with its own tribal government, legal system, and management of natural resources. The tribal council maintains full authority over access to tribal lands, including the world-famous falls.
The management of tourism represents a critical exercise of tribal sovereignty. Unlike public lands managed by federal agencies, access to Havasupai lands is at the sole discretion of the tribe, which has developed a permit system that balances economic benefits with cultural preservation and environmental sustainability. All regulations, from camping policies to photography restrictions, reflect tribal values and priorities rather than external management frameworks.
Understanding this history helps visitors appreciate that access to Havasu Falls is a privilege granted by the Havasupai Tribe, not a right, and that regulations should be respected as expressions of tribal sovereignty over ancestral lands.
Tourism has evolved significantly over the decades as the tribe has developed increasingly sophisticated management approaches:
Early Tourism: Small-scale tourism began in the early 20th century, initially with adventurous travelers who learned about the falls through word of mouth. The construction of the first simple lodge in Supai village in the 1940s marked the beginning of more organized visitation.
Growth Period: Through the 1970s-1990s, visitation gradually increased but remained relatively manageable due to the area’s remoteness and limited publicity.
Digital Era Impact: The advent of social media dramatically increased awareness of Havasu Falls, with Instagram and other platforms showcasing its photogenic beauty to worldwide audiences. This led to exponential growth in demand for permits in the 2010s.
Modern Management System: In response to growing demand, the tribe has implemented an increasingly sophisticated management system that includes:
Economic Importance: Tourism now represents the primary economic driver for the Havasupai Tribe, providing employment opportunities and revenue that supports essential tribal services. The majority of tribal members work in tourism-related roles, from administration to guiding, maintenance, and hospitality.
COVID-19 Impact: The pandemic prompted an extended closure of tribal lands to outsiders from March 2020 through early 2022, demonstrating the tribe’s commitment to prioritizing community health over tourism revenue. The reopening has included adjusted visitor policies reflecting lessons learned during this period.
The tribe continually refines its approach to tourism management, seeking to balance economic benefits with cultural preservation, environmental protection, and the quality of life of tribal members. Visitors directly contribute to tribal self-determination through their tourism expenditures, which provide essential support for this sovereign Native nation.
The centerpiece of any visit is Havasu Falls itself, a 100-foot waterfall that exemplifies the magical quality of this landscape. The falls experience typically includes:
The First View: Most visitors first glimpse Havasu Falls from the trail above, where the stunning turquoise waters appear almost surreal against the red canyon walls. This initial viewpoint offers excellent photography opportunities capturing the entire falls and pool system.
The Main Pool: At the base of the falls, a series of travertine pools create ideal swimming areas with depths ranging from shallow wading sections to deeper swimming holes. The main pool directly beneath the falls ranges from 10-15 feet deep depending on recent flood activity and seasonal conditions.
Swimming Experience: The consistent 70°F (21°C) water temperature makes swimming pleasant year-round, though ambient air temperatures vary dramatically by season. The high mineral content gives the water a distinctive feel, and the continuous mist from the falls creates a natural cooling effect even on hot summer days.
Day Use Areas: The vicinity of the falls includes several flat areas with cottonwood shade, suitable for picnicking and relaxing between swims. Some sections feature natural travertine benches that provide comfortable seating with views of the falls.
Photography Considerations: Light conditions vary dramatically throughout the day, with mid-morning to early afternoon typically providing the best lighting for capturing the falls’ vibrant colors. The contrast between the turquoise water and red rock creates challenges for photography that can be addressed through bracketing exposures or using polarizing filters.
Visitors frequently describe their first encounter with Havasu Falls as breathtaking or even spiritual, with the combination of visual beauty, the sound of rushing water, and the refreshing mist creating a multi-sensory experience that exceeds expectations even after seeing countless photographs.
While Havasu Falls is the most famous, several other equally impressive waterfalls along Havasu Creek create options for extended exploration:
Fifty Foot Falls (Upper and Lower Navajo Falls): Located approximately 1.5 miles downstream from Supai village, these falls were created after a 2008 flood reorganized the creek’s flow. The area features multiple cascades and excellent swimming holes with generally fewer visitors than Havasu Falls.
Mooney Falls: At 190 feet, Mooney Falls drops nearly twice the height of Havasu Falls and presents the most dramatic single plunge in the canyon. Accessing the base requires navigating a challenging route through tunnels carved in the travertine cliff, followed by a descent using chains and ladders—not recommended for those with fear of heights or in wet conditions. Named after miner D. Mooney who fell to his death while attempting to climb the cliff in 1882.
Beaver Falls: Located approximately 4 miles downstream from the campground, Beaver Falls requires a longer hike but rewards visitors with a spectacular multi-tiered cascade system. The trail crosses Havasu Creek several times and traverses diverse terrain, including ladders and rock scrambles. The falls feature numerous small pools arranged in steps, creating one of the most photogenic landscapes in the entire canyon.
Confluence with Colorado River: The most ambitious day hike from the campground (approximately 8 miles one-way) leads to where Havasu Creek joins the Colorado River. This challenging route passes through spectacular narrow canyon sections and requires multiple creek crossings. Permits from Grand Canyon National Park may be required for this section, as it crosses reservation boundaries.
Each waterfall has a distinctive character and offers different recreational possibilities. Ambitious visitors often try to experience all the falls during their stay, while others prefer to focus on one or two locations for deeper exploration and relaxation.
The trail system in Havasu Canyon offers varied hiking experiences beyond the initial access route:
Main Trail (Hualapai Hilltop to Supai): The primary access route descends approximately 2,000 feet over 8 miles, beginning with steep switchbacks before leveling out in Hualapai Canyon. The trail is well-maintained but challenging due to its length, exposure, and lack of water or shade in the upper sections.
Supai to Havasu Falls: This relatively easy 2-mile section connects the village to the main falls and campground, following Havasu Creek through the riparian corridor with moderate elevation changes.
Falls Interconnecting Trails: A network of informal paths links the various falls, with the most developed route being the 1.5-mile trail from the campground to Mooney Falls, which includes the famous tunnel and chain section.
Beaver Falls Route: This 4-mile (one-way) trail from the campground follows Havasu Creek downstream through diverse terrain requiring creek crossings, ladders, and basic route-finding skills.
Side Canyon Exploration: Several side canyons intersect with the main Havasu Canyon, offering opportunities for exploratory hiking. Some require technical canyoneering skills and equipment, while others are accessible to experienced hikers comfortable with route-finding.
Hiking conditions vary seasonally:
All exploration should be conducted with awareness of flash flood potential, particularly during summer monsoon season when storms may develop rapidly. Hikers should always be prepared to move to higher ground if water levels begin rising or if they observe sudden changes in water clarity or debris flow.
The Havasupai Tribe offers several accommodation options, though camping is the most common choice for visitors:
Campground: The primary camping area stretches for approximately one mile along Havasu Creek between Havasu Falls and Mooney Falls. Features include:
Havasupai Lodge: Located in Supai village, approximately 2 miles from Havasu Falls, the tribal-operated lodge offers:
Home Stays: Some tribal members occasionally offer private accommodations in their homes within Supai village, typically arranged through direct connections or word of mouth rather than formal reservation systems.
Camping permits typically cover a 3-4 night stay, allowing visitors to fully experience the area without rushing. Lodge stays can be shorter, often 1-2 nights, though many lodge guests still hike the full distance to the falls each day.
Important considerations for campers include:
Havasu Falls and its surrounding environment offer world-class photography opportunities that attract professionals and enthusiasts alike:
Prime Locations:
Lighting Considerations:
Technical Tips:
Tribal Photography Regulations:
The photographic potential of Havasu Falls has contributed significantly to its worldwide fame, particularly in the social media era. Responsible photographers can capture stunning images while respecting tribal guidelines and the experience of other visitors.
Each season offers a distinctive experience at Havasu Falls, with significant variations in conditions, crowds, and overall atmosphere:
Spring (March-May):
Summer (June-August):
Fall (September-November):
Winter (December-February):
The optimal visiting season depends on individual preferences for temperature, crowd levels, and seasonal phenomena. Many experienced visitors prefer spring or fall for the ideal balance of comfortable conditions and moderate visitor numbers.