This is a list of the countries which have less than 10 underground sites, for a full list of African countries see
Africa.
Algeria
Grotte des ain Beni Add
Ghardaïa
Grotte Hamma
Hammam Maskhoutine
Grotte Merveilleuse
Rhummel Gorge
Tassili n’Ajjer
Namibia
Arnhem Cave
Dureb Caves
Fish River Canyon
Gaub Cave
Philipp’s Cave
Sperrgebiet National Park
République Démocratique du Congo
Grottes de Mbanza-Ngungu
Grotte de Dimba
Grotte Finzolua Ndombolozi
Grotte de Ndimba Dimba
Grotte Ngovo