Hawaii Volcanoes National Park highlights two of the world's most active volcanoes, and offers insights on the birth of the Hawaiian Islands. Accessibility to the ongoing eruptions of Kilauea Volcano and the periodic eruptions of Mauna Loa, offers opportunity for the scientist and casual observer alike, to witness the formation of an array of astounding geologic features including new cinder cones, glowing pit craters, rivers of lava and fountains of spatter.