Mike Lyvers: grotte choranche
Mike Lyvers: aven armand stalagmites
Mike Lyvers: gouffre geant colors
Mike Lyvers: gouffre geant
Mike Lyvers: predjama cave castle
Mike Lyvers: in postonja cave slovenia
Mike Lyvers: postonja sparkly flowstone
Mike Lyvers: inside the skocjanske doline
Mike Lyvers: Skocjanske rimstone dams
Mike Lyvers: akiyoshido entrance
Mike Lyvers: Zhijin Cave, China
Mike Lyvers: Batu Cave Temple complex Malaysia
Mike Lyvers: Staircase to main Batu Temple Cave
Mike Lyvers: Main Batu Temple Cave
Mike Lyvers: Inside one of the Batu Caves
Mike Lyvers: Deer Cave Sarawak Borneo
Mike Lyvers: Lang Cave Sarawak Borneo
Mike Lyvers: Lang Cave flowstone
Mike Lyvers: contemplating a swim in the princess pool
Mike Lyvers: curved stalactites of tham lod
Mike Lyvers: tham lod back to sunlight
Mike Lyvers: entering hong island
Mike Lyvers: hong island interior
Mike Lyvers: sea cave tasmania
Mike Lyvers: tasman arch
Mike Lyvers: Cave Creek
Mike Lyvers: thunder cave
Mike Lyvers: lost world preparing to descend
Mike Lyvers: misty lost world looking up
Mike Lyvers: lost world on the bottom