Walk across the solidified lava lake of Kilauea Illi crater, formed during the dramatic 1959 eruption that shot lava 1,900 feet into the air, then descend into ancient lava tubes carved by molten rock thousands of years ago. Your private guide leads you through both the crater floor and underground volcanic caves within Hawaii Volcanoes National Park, explaining how explosive and effusive eruptions shaped these two distinct geological features. This 4.5-mile moderate hike combines surface crater exploration with subterranean adventure—a rare combination available only on private tours.
