Lava Tree State Monument
Walk Among the Ghosts of an Ancient Forest Frozen in Lava
Lava Tree State Monument on Hawaii’s Big Island offers one of the most unique geological experiences in the entire state park system. This 17-acre preserve protects an extraordinary collection of lava tree molds — hollow, chimney-like structures formed when a river of molten lava from Kilauea swept through an ohia forest around 1790, encasing the tree trunks in liquid rock before draining away.
What remains are hauntingly beautiful lava sculptures — some towering over 12 feet tall — that perfectly preserve the shape and even the bark texture of the trees that once stood here. Walking among these ghostly formations feels like stepping into a natural art gallery where the artist was one of the most powerful forces on Earth.
The Loop Trail
The park’s main attraction is an easy 0.7-mile paved loop trail that winds through the lava tree forest. The well-maintained path is mostly flat, making it accessible to visitors of all ages and mobility levels. Most visitors complete the loop in 30–60 minutes, though photographers and geology enthusiasts often spend considerably longer.
What You’ll See Along the Trail
- Lava Tree Molds: Dozens of hollow vertical lava columns line the trail, ranging from a few feet to over 12 feet tall. Look closely and you can still see the impression of tree bark preserved in the hardened basalt — a 230-year-old fingerprint of the living forest.
- Lush Tropical Regrowth: The contrast between the stark black lava formations and the vibrant green tropical vegetation is striking. Native ohia lehua trees, hapu’u tree ferns, and lush mosses have gradually reclaimed the landscape, growing directly from cracks in the lava.
- Ground Cracks: Deep fissures in the earth created by volcanic activity are visible along the trail. These cracks sometimes extend many feet deep and serve as a reminder of the powerful geological forces still at work beneath your feet.
- Interpretive Signs: Educational plaques along the trail explain the geology, volcanic history, and ecology of the area, making this an excellent learning experience.
Wildlife & Nature
Despite its volcanic origins, the monument supports a surprisingly diverse ecosystem. Listen for the melodic songs of native Hawaiian birds in the tree canopy, and watch for colorful endemic species. The park is home to various native plants, including the iconic ohia lehua — the first tree to colonize new lava flows — whose brilliant red blossoms are sacred in Hawaiian culture.
Visitor Information
- Location: Pahoa-Pohoiki Road (Highway 132), southeast of Pahoa Town in the Puna district of Hawaii’s Big Island.
- Hours: Open daily during daylight hours.
- Cost: Free admission and free parking.
- Facilities: Picnic tables and restrooms are available at the trailhead.
- No Camping: This is a day-use only monument.
- Best Time to Visit: Early morning for the best light and fewer visitors. The Puna district receives significant rainfall, so mornings tend to be drier.
- What to Bring: Comfortable walking shoes, mosquito repellent (essential in this tropical lowland!), camera, and rain jacket.
- Combine With: Nearby attractions include Hawaii Volcanoes National Park (30 minutes) and the Black Sand Beach at Pohoiki (10 minutes).
Why Visit Lava Tree State Monument
In a state filled with volcanic wonders, Lava Tree State Monument offers something genuinely different — a quiet, accessible encounter with the raw power of Kilauea that doesn’t require strenuous hiking or special permits. It’s a perfect addition to a Big Island road trip, combining geological wonder with the serene beauty of a tropical forest slowly reclaiming its volcanic landscape. The entire visit typically takes under an hour, making it easy to combine with other Puna district attractions.
Frequently Asked Questions
Do I need a reservation for Diamond Head?
Yes, Diamond Head State Monument now requires mandatory advance reservations for all visitors. Reservations can be made online through the Hawaii DLNR website. Walk-ups are not permitted without a reservation.
Is reef-safe sunscreen required in Hawaii?
Yes, Hawaii law requires the use of reef-safe sunscreen to protect coral reefs. Sunscreens containing oxybenzone and octinoxate are banned. Look for sunscreens labeled “reef-safe” or “mineral-based.”
Are Hawaii state parks free?
Most Hawaii state parks are free to enter. Some popular sites like Diamond Head and Hanauma Bay require paid reservations. Camping permits must be obtained through the DLNR website in advance.
Can I camp at Hawaii state parks?
Yes, several Hawaii state parks offer camping including Polihale and Koke’e on Kauai, and Hapuna Beach and Kalopa on the Big Island. Permits must be obtained in advance through the Hawaii DLNR.
Explore More Hawaii State Parks
Lava Tree State Monument is one of many outstanding state parks in Hawaii. Discover more parks in our Best State Parks in Hawaii guide, or use our Park Finder to search by activity, location, or features.
