Located in the center of the historic triangle of Bagamoyo, Pangani and Zanzibar, Saadani National Park covers 1,100 square km and is the only wildlife sanctuary in Tanzania that borders 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 boasting over 40 species of fish, green turtles, humpback whales and dolphins occur just off the shores as well.
Gazetted in 2005, it encompasses a preserved ecosystem including the former Saadani Game Reserve, the former Mkwaja ranch area, the Wami River and 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 (WWF) whose goal was to preserve the extremely high botanical diversity of one of the last coastal rain forests remaining in Tanzania.