Big Island, Hawaii CC239
Actun Tunichil Muknal Cave, Belize, Central America CC240
Caving in Belize, Central America CC241
Yordas Cave, Yorkshire Dales, UK CC242
Ice caving, Fox Glacier, New Zealand. CC243
Lava tube cave, Big Island, Hawaii CC244
Massive 100m (300ft) descent into Actun Loch Tunich cave, Belize, Central America CC245
Actun Tunichil Muknal cave, Belize, Central America CC246
Ice caving, Fox Glacier, New Zealand CC247
Yordas Cave, Yorkshire Dales, UK CC248
Deer Cave, the world's largest cave passage. Mulu, Sarawak, Borneo. CC249
Thousand year old human sacrifice covered in calcite crystals, Actun Tunichil Muknal Cave, Belize, Central America. CC250
Cave of the Winds, Mulu, Sarawak, Borneo CC251
Caver standing beneath waterfall illuminated by light from huge entrance, Green Cave, Mulu, Sarawak, Borneo CC252