Madagascar

Anjanamba is the name of a cave in South-Western Madagascar, Atsimo-Andrefana region, in the Mikea Forest. Anjanambalahy is the name of one of the people who occupied Anjanamba before settlers. 

The Marosakabe cave system is a cave in Marosalaza, Madagascar. Marosakabe measures about 8 miles (13 km) long and contains numerous chambers, including the Marosakabe Chamber, which is 16 by 30 meters (52 by 98 ft) in size and over 162 meters (531 ft) deep at its lowest point.