Located in the centre of the historic triangle of Bagamoyo, Pangani and Zanzibar, Saadani National Park covers 1100km square. It is the only wildlife sanctuary in Tanzania bordering the sea. The climate is coastal, hot and humid. It offers a unique combination of both marine and mainland flora and fauna in a culturally fascinating setting. About 30 species of larger mammals are present as well as numerous reptiles and birds. Besides many species of fish (over40), green turtle, Humpback whale and dolphins also occur in the ocean nearby.
Gazetted in 2005, it encompasses a preserved ecosystem including the former Saadani game reserve, the former Mkwaja ranch area, the Wami River as well as the Zaraninge Forest. Many villages exist around the boundaries of the park. Before being included in the national park, the zaraninge forest was managed by the World Wide Fund for nature (WWF) whose goal was to preserve the extremely high botanical diversity of one of the last coastal rain forests remaining in Tanzania.