Lake Kashiba, Sunken lake in Mpongwe, Copperbelt Province, Zambia

Lake Kashiba is a sunken lake in limestone southwest of Luanshya, near Mpongwe and St Anthony's Mission. It covers about 3.5 hectares, with a depth of roughly 70 metres on the south side and about 150 metres on the north side. Its water surface lies about 10 metres below the surrounding forest, and bream and some carp are visible through the blue water.

The lake is linked to the history of the Lamba people and Chief Chipimpi, with local accounts describing a tragic event involving members of the Goat Clan centuries ago.

Local legends warn against fishing in the lake, claiming the fish cannot be cooked, and stories describe a mysterious creature called Ichitapa that is said to inhabit the waters.

The lake lies southwest of Luanshya, near Mpongwe and St Anthony's Mission, reached by unpaved roads. The water surface sits about 10 metres below the surrounding forest, so the shoreline is steep. The southern side is about 70 metres deep, while the northern side drops to roughly 150 metres.

Residents have reported that tree leaves around the lake disappear each morning, a phenomenon attributed by some to supernatural causes while scientists suggest geological or botanical explanations.