Halema'uma'u Crater, Kilauea Caldera Hawai'i Volcanoes National Park Photo by Howard Ignatius / Flickr (noncommercial use permitted with attribution/no derivative works).
Hawai'i Volcanoes National Park
The National Park Service protects the natural setting of Kīlauea and Mauna Loa at Hawai'i Volcanoes National Park. Here you can experience fiery fountains and rivers of molten lava.