The Jozani Chwaka Bay National Park is a 50 km2 (19 sq mi) national park in Tanzania located on the island of Zanzibar. It is the only national park in Zanzibar. The Zanzibar red colobus monkey can be found in the park, as a rainforest species (unlike the black-and-white colobus found in other regions of Africa). Other species of fauna found in the park are the Zanzibar leopard (which is extremely elusive to the point they were believed to be extinct), the Sykes monkey, bush babies, more than 50 species of butterflies, and 40 species of birds.Â