Underground lake
Videos
An underground lake or subterranean lake is a lake underneath the surface of the Earth. Most naturally occurring underground lakes are found in areas of karst topography, where limestone or other solu
Underground lake within Cross Cave in Slovenia, one of 22 such lakes
An underwater lake in Cueva Maronal located in the Elías Soplín Vargas District of Peru
"Fairy Kingdom", a cave inside the Saalfeld Fairy Grottoes in Thuringia, Germany.
Cave of the Sergeant located in near Saint-Guilhem-le-Desert in Hérault, France.
Subterranean river
Videos
A subterranean river is a river or watercourse that runs wholly or partly beneath the ground, one where the riverbed does not represent the surface of the Earth. It is distinct from an aquifer, which
Underground lake
…Subglacial lake – Lake under a glacier Subterranean river – River that runs wholly or partly beneath the ground surface Subterranean waterfall – Waterfall located underground…
The cave of source of the Buna can be entered by boat and dived through a cave system serving as an effluence of the Zalomka.
The Puerto Princesa cave can be entered by boat.
Devil's Throat Cave subterranean river from above