Located in Hawaii Volcanoes National Park, Thurston Lava Tube is one of the main attractions for visitors as they explore the park . Like veins leading from the central 'heart' of the volcano, lava tubes direct molten earth toward the ocean. As the lava flows the outer crust begins to harden while the inner lava continues to flow. Once the flow stops, the tunnel formation remains.
Thurston Lava Tube could date back some 350-500 years. The tube is named for Lorrin Thurston, a newspaper publisher that played an instrumental role in creating the park.
You will take short trail through lush vegetation replete with tropical ferns and singing honeycreeper birds called Apapane. Cross a short bridge and you enter the damp dark world of a lava tube. Lit for safety, the tube is a fascinating experience that ends too quickly.
https://www.hawaii-guide.com/big_island_of_hawaii/sights/thurston_lava_tube