The Cango Caves of South Africa can be located outside the town of Oudsthoorn in the foothills of the Swartberg range. The cave system extends over 2.5 miles (4 km) in its entirety, but only a fourth of it is available to visitors.
The Cango Caves features an array of limestone formations and displays some amazing views of stalactites and stalagmites. The biggest of the chambers stretches across 984 feet (300 m).