Our expert volcanologists and photographers offer unique travel experiences:
volcano expeditions, photo tours, and relaxed walking & study tours.
Guaranteed tours
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A trace of holes in the ground - collapsed parts of a lava tube and old skylights - draws the path of the main flow in the early 1990s towards Kalapana. SE part of Pu'u 'O'o in the right background. (Photo: Tom Pfeiffer)