Geography of Africa in the lake of organisms of a decidedly marine type. They include jellyfish, molluscs, prawns, crabs, etc. With the exception of Madagascar, the African islands are small. Madagascar, with an area of , is, after Greenland, New Guinea and Borneo, the fourth largest island on the Earth. It lies in the Indian Ocean, off the S.E. coast of the continent, from which it is separated by the deep Mozambique channel, wide at its narrowest point. Madagascar in its general structure, as in flora and fauna, forms a connecting link between Africa and southern Asia. East of Madagascar are the small
Rotamah Island Bird Observatory island to Ninety Mile Beach. These factors give visitors easy access to both freshwater and marine habitats. There is a small population of the introduced Hog Deer on the island. In 2001 negotiations between Birds Australia and Parks Victoria, on renewal of the lease to the observatory, broke down and Birds Australia's association with Rotamah Island ended. Rotamah Island Bird Observatory Rotamah Island Bird Observatory was established in 1979 on Rotamah Island in the Gippsland Lakes National Park in eastern Victoria, Australia, by Birds Australia as Australia's second bird observatory, in order to provide a base for the study and