Highlight • Volcano
Hiking
5.0
(5)
Puʻu Huluhulu, meaning "hairy hill" in Hawaiian, is a distinctive volcanic cone and natural monument located near the geographical center of the Big Island of Hawaiʻi. Rising to an elevation of 2032 meters (6,666 feet), this unique landmark is situated along Hawaii Route 200, also known as Saddle Road, directly opposite the intersection with the Mauna Kea Access Road. It stands as a remarkable kīpuka, an older, vegetated landmass surrounded by more recent lava flows, creating an ecological island amidst the vast volcanic landscape.
Visitors consistently praise Puʻu Huluhulu for its panoramic views and unique ecological significance. From its summit, hikers are treated to expansive vistas of the Saddle Plain, the majestic Mauna Kea, and the imposing Mauna Loa. The area is celebrated for its blend of lush native forest and stark volcanic terrain, offering a rare opportunity to observe native Hawaiian plants and birds thriving within a protected sanctuary. The geological wonder of the kīpuka itself, surrounded by ropey *pahoehoe* lava fields, also captivates many.
Before embarking on your visit, it's helpful to know that Puʻu Huluhulu is easily accessible from Saddle Road, with parking available at the trailhead. The trails are generally considered easy to intermediate, making them suitable for various skill levels. Given the elevation, the air can be cooler, so dressing in layers is advisable. While there is an outhouse, running water is not available, so plan accordingly. It's also wise to stay on marked trails to protect the delicate ecosystem and be aware that seasonal hunting occurs in the broader area, suggesting bright clothing for visibility.
The best time to visit Puʻu Huluhulu is during daylight hours, as the site is open daily and free to access. It's an excellent spot for a leisurely hike or a quick stop to stretch your legs while driving across the island. Many find the short, easy loop trails ideal for family-friendly hikes, offering a chance to experience the unique terrain without a strenuous climb. For those planning to ascend higher elevations on Mauna Kea, the moderate altitude of Puʻu Huluhulu provides a great opportunity for altitude acclimation.
The hike to the top of Puʻu Huluhulu typically takes about 30-45 minutes, offering a rewarding experience for a relatively short effort. The trails wind through the native tree sanctuary, allowing for close-up views of the diverse flora. Hikers can combine various paths to extend or shorten their journey, exploring the "hairy hill" and its surrounding lava flows at their own pace.
What truly makes a visit memorable are the vivid contrasts and natural wonders. Imagine walking through a vibrant native forest, then stepping out onto ancient lava flows, feeling the raw power of the earth's history beneath your feet. The quiet solitude, punctuated by the calls of native birds, creates a profound sense of connection to this sacred Hawaiian landscape. It's a place where the past and present of Hawaii's volcanic activity and ecological resilience are beautifully intertwined.
Whether you're seeking panoramic viewpoints, unique geological features, or simply a peaceful walk amidst nature, Puʻu Huluhulu offers a range of experiences. Explore the various Puʻu Huluhulu volcano trails and routes, which cater to different preferences, from short strolls to more extended hikes. You can discover and plan your next adventure on komoot, finding the perfect path to experience this remarkable natural monument.
Tips
October 11, 2023
Hiking

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Nearby routes
Best routes near Puʻu Huluhulu (Hairy Hill)

3
hikers
1.61km
00:27
30m
30m
Hike the easy 1.0-mile Puʻu Huluhulu Trail to explore a unique volcanic landscape and native forest with panoramic views.

9
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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Elevation 2,030 m
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Puʻu Huluhulu is a remarkable kīpuka, which is an older, vegetated landmass that was surrounded but not covered by more recent lava flows. This creates an ecological island of native forest amidst vast, younger volcanic landscapes, primarily rough, uneven pahoehoe lava fields. It's a fascinating example of how life persists and thrives in a dynamic volcanic environment.
Yes, Puʻu Huluhulu features a network of short, easy loop trails that can be combined to extend or shorten your hike. The main trail leads to the summit of the cinder cone, offering panoramic views. While the hike to the top typically takes about 30-45 minutes, hikers can explore various paths through the native tree sanctuary and surrounding lava flows.
The trails at Puʻu Huluhulu are generally considered easy to intermediate, making them suitable for most visitors, including beginners. The ascent to the top of the cinder cone is relatively short and offers a rewarding experience without being overly strenuous. It's an excellent option for those looking for a moderate outdoor activity.
Puʻu Huluhulu is highly recommended for families due to its accessible, short loop trails and unique natural features. It's a great place for children to learn about geology and native Hawaiian plants. However, regarding dogs, it's important to check current regulations for protected natural areas in Hawaii, as many do not permit pets on trails to protect native wildlife.
Parking is conveniently available at the trailhead directly off Hawaii Route 200 (Saddle Road), opposite the Mauna Kea Access Road intersection. The site is open daily during daylight hours and is free to visit. While parking is generally sufficient, it's always a good idea to arrive earlier in the day, especially on weekends or holidays, to ensure a spot.
Given its elevation of around 6,500 feet, the weather at Puʻu Huluhulu can be cooler and change quickly. It's advisable to dress in layers, bring water, sun protection (hat, sunscreen), and sturdy walking shoes. Although there's an outhouse, running water is not available, so plan accordingly. Bright clothing is also recommended, as seasonal hunting occurs in the broader area.
Yes, Puʻu Huluhulu is a native tree sanctuary, offering a chance to observe various native Hawaiian plants like ʻIliahi (sandalwood), Koa, Pilo, ʻĀkala (Hawaiian raspberry), ʻĀnunu, and Naio. It's also home to native birds, thriving in this preserved mesic native forest ecosystem. Staying on marked trails helps protect this delicate environment.
Situated at approximately 6,500 feet, Puʻu Huluhulu offers a great opportunity for visitors to begin acclimating to higher altitudes. Spending some time hiking here before heading to the summit of Mauna Kea (which is significantly higher) can help reduce the effects of altitude sickness, allowing your body to adjust gradually.
Puʻu Huluhulu is located in a relatively remote area along Saddle Road, which traverses the center of the Big Island. Amenities are limited directly at the site. For cafes, pubs, or accommodation, you would need to drive to nearby towns such as Hilo to the east or Waimea/Kona to the west, which are a significant distance away.
Puʻu Huluhulu is considered a sacred Hawaiian site. Its status as a kīpuka, an ancient landform that has withstood more recent volcanic activity, imbues it with a sense of enduring natural power and historical continuity. The preservation of native flora and fauna within its boundaries further emphasizes its cultural and ecological importance.