entrance to the lang cave at gunung mulu national park. sarawak

river water stream nature wilderness tree waterfall forest creek rock jungle landscape fore rocks mulu national malaysia asia wild travel trip journey adventure tourism tropical park bridge sarawak mountain beautiful panorama bank panoramic mountains deer cave view paku gunung man standing walking wildlife photogrpaher camera animals tourist wandering sarawakrain rainforest trees color lndscape sarawa jungles vertical pinnacles trekking hiking trail beauanoramic entrance entering enterave inside sharp spires limestone geology speleology speleogenesis geological depth karst calcium carbonate