CENTRAL ISLAND NATIONAL PARK

The Gem of Lake Turkana

Emerging starkly from the blue-green waters of the largest permanent desert lake in the world, Lake Turkana, the Central Island is made up of three active volcanoes that belch sulphurous smoke and steam. Three crater lakes, Crocodile Lake, Flamingo Lake and Tilapia Lake, provide breeding grounds for the world’s largest concentration of Nile crocodiles. Central Island has a campsite where visitors can enjoy the beautifully haunting sight of the lake’s luminous waters wash up onto a black lava beach while the moon rises over the menacingly smoking craters. Central Island is composed of more than a dozen craters and cones, three of which are filled by small lakes. The two largest lakes partially fill craters up to a kilometre wide and about 80 m deep, the floors of which are near sea level. The highest point on the dominantly basaltic island reaches 550 m, about 190 m above the lake surface. An E-W-trending chain of small explosion craters cuts the eastern side of the 3-km-wide island. Several small islands to the SE represent partially submerged crater rims, and other cones and lava plugs lie beneath the lake surface near the island.

The youngest Central Islands tuffs and lavas may be as young as Holocene (Karson and Curtis, 1992). Fumarolic activity is concentrated along the NE-to-SE rim of the central crater, and sprays of sulfur from the fumaroles were observed by visitors in the 1930s. In 1974 intense emission of molten sulfur and steam clouds were seen from the mainland.