The Bothongo WonderCave in Kromdraai, Gauteng, South Africa is situated within the Bothongo Rhino & Lion Nature Reserve in the Cradle of Humankind, a UNESCO World Heritage Site.
It was discovered in the late nineteenth century by miners who dynamited and excavated limestone for the making of cement.
Mining stopped during the Second Boer War and never resumed.
The cave has about 14 stalactite and stalagmite formations up to 15 metres high, 85% of which are still growing.
The 60-metre-deep cave is accessible to visitors by elevator.