An excellent network of forest trails includes the popular half-day ramble to Sanje Waterfall, which plunges 170 metres (550 feet) through a misty spray into the forested valley below. A home to 6 species of primates, 2 of which (Iringa red colobus and the Sanje crested Mangabey) occur nowhere else in the world. 

Beautiful Sanje waterfall  ::   A paradise for hikers and backpackers alike

Mammals found in the park include elephants, leopards, bush bucks, duikers, palm civets, Miombo genets, elephant shrews and hyenas. . Bird watchers are also in for a treat as the park boasts with over 400 species of birds. Some of them are endemic to the Eastern Arc Mountains and four of them are found only in Udzungwa.