The natural Boesmansgat Sinkhole is found on the beautiful Mount Carmel Farm, located about 55km south of Kuruman. It came about due to underground water dissolving the dolomite rocks above. The sinkhole is almost completely filled with fresh water and is thought to be 270m deep, making it one of the deepest fresh water caves not only in South Africa, but also the world.

Access to the mouth of the cave is via a steep climb down the rock face. Many world cave diving records have been obtained in this exceptional sinkhole, but it has sadly also claimed the lives of some of the expert divers who were attempting dives here.

A small entrance fee is payable when entering the Mount Carmel Farm. Fees: Car R50, Combi R100, Bus R300. For more info, call +27 (0) 53 384 0564.