This is the largest biodiversity chain of forests in the Eastern Arc Mountains that also includes Usambara that had raised to be in top swathing from the coast of the Indian Ocean. It’s the archipelago of the isolated massifs that others termed it as the African Galapagos due to the unique wildlife with rare species of birds and animals and endemic plants that do not exist/found anywhere in the world. Udzungwa alone among the ancient ranges of the Eastern Arc has been accorded national park status. It is also unique within Tanzania in that, its closed-canopy forest spans altitudes of 250 meters (820 feet) to above 2,000 meters (6,560 ft) without interruption.

The biodiversity of Udzungwa with a unique super natural rainforest is the home to six primates that are rare and only found in this park including Sanje Crested Mangabey named after Sanje waterfalls and Iranga Red Colobus. Undzungwa is not like the other National Parks. The Udzungwa Mountains are almost supernatural and possess a remote and exceptional natural beauty. Everything is done on foot: armed rangers and certificated guides accompany visitors, who observe wildlife from another viewpoint.