Inside Hawaii Island’s Lava Tubes: Nāhuku, Kaumana and a Guided Cavern Near Hilo
Nāhuku, the lava tube long known as Thurston Lava Tube, in Hawaiʻi Volcanoes National Park. Photo by Brent Cassie As a child, I was afraid of the dark. Confined spaces didn’t thrill me either. Decades later, as I peer into the black mouth of a cave on …