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Explore Thurston Lava Tube At Hawai'i Volcanoes National Park By Flashlight

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Published Date

February 5, 2018

You can now explore Thurston Lava Tube at Hawai'i Volcanoes National Park on your own by flashlight/Rebecca Latson

Beginning today, visitors to the popular Thurston Lava Tube (Nāhuku) in Hawai‘i Volcanoes National Park can choose to the explore the cave in the dark with their own light source, or  time their trip to coincide with a new lighting schedule.

Park staff installed a new electrical system with 12 energy-efficient amber LED lights to illuminate the 400-foot-long lava tube – plus an additional amber spotlight to shine light on a low part of the cave ceiling. The lights will automatically turn on every day at 10 a.m., and will go out at 8 p.m. The cave will remain open overnight, but it will be pitch black inside from 8 p.m. until 10 a.m. the next day.  

Exploring Thurston Lava Tube at Hawaii Volcanoes National Park by headlamp/NPS

Headlamps are a great way to explore the lava tube after the lights go off/NPS, Janice Wei

Visitors must carry their own light source if planning to explore the lava tube in its dark, natural state before 10 a.m. or after 8 p.m. Park rangers recommend head lamps and flashlights; cell phones are not recommended as the only light source.

“When we turned the lights off to install the new electrical system, visitors told us they were in favor of leaving an option for a ‘lights out’ natural cave experience in Nāhuku,” said park Superintendent Cindy Orlando. “We’re excited that the new lighting schedule satisfies visitors, is better for the environment, and supports our goal for a sustainable future.”

The new lighting system also increases visitor safety by illuminating the interior, and protects the cultural integrity of the ‘ana (cave) by inhibiting the growth of non-native plant and algae species.

Visitors explore the Thurston Lava Tube at Hawaii Volcanoes National Park/NPS, Janice Wei

The amber lighting system makes it more enjoyable to explore the Thurston Lava tube/NPS, Janice Wei

Located near the summit of Kīlauea Volcano off Crater Rim Drive, Nāhuku and its lush rainforest trail are popular features in the park. An eruption from Kīlauea 550 years ago produced vigorous streams of lava, and the long, hollow tunnel was left behind when the molten rock drained away.  

The native rainforest surrounding Nāhuku is home to endemic plant, bird and insect species, like the Happyface Spider. Visitation is heaviest between 10 a.m. and 2 p.m., and parking is limited to 30 minutes.  

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