Eastern Arc rainforest above the Kilombero Valley, with the tiered Sanje waterfalls and primates found nowhere else on Earth
Udzungwa Mountains National Park is unlike Tanzania's savannah parks: there are no game drives here, and the forest is explored on foot. The park protects the largest block of the Udzungwa range, part of the ancient Eastern Arc Mountains that stretch from southern Kenya into Tanzania, and its slopes climb from the lowland forest on the edge of the Kilombero Valley through dense rainforest and montane forest to grassland near the highest peak.
Isolated for millions of years, these forests are rich in species found nowhere else. Two primates, the Udzungwa red colobus and the Sanje crested mangabey, are endemic to the area, and the park also shelters rare birds, amphibians, chameleons and the grey-faced sengi, a giant elephant shrew. For most visitors, though, the highlight is the hike to the Sanje waterfalls, which plunge down the escarpment in a series of drops with views across the valley.
The Udzungwa forests were long managed as forest reserves, and in 1992 several of them, including Mwanihana, Iwonde and Nyanganje, together with parts of others, were gazetted as Udzungwa Mountains National Park to protect their exceptional biodiversity and the water catchment they provide for the Kilombero Valley.
Scientific discoveries here continue to underline the area's importance. The Sanje crested mangabey was only documented by researchers in 1979, the Udzungwa partridge lives mainly in forest just outside the park's western boundary, and a new chameleon species was described from the park in 2009. The park headquarters at Mang'ula, on the eastern side, is the starting point for most trails.
The park lies on the edge of the farmed Kilombero Valley, and villages such as Mang'ula stretch along the road below the escarpment. The forests protect the catchment of rivers that people in the valley rely on for water, which gives communities a strong local reason to value them. Guesthouses and small lodges in and around Mang'ula are run by local families, and buying food and services in the village supports the community.
Walking is the only way to explore Udzungwa. Short trails near the headquarters lead through forest where red colobus and other monkeys are often seen, while the best-known hike climbs to the Sanje waterfalls, with picnic sites, viewpoints and pools along the way. Longer routes and overnight treks into the higher forest can be arranged with a ranger or guide, using the park's campsites.
The park is usually visited from Mang'ula, south-west of Mikumi, and it combines well with a safari in Mikumi for a contrast of forest and savannah. Allow at least one full day for the waterfall trail, and start early to make the most of the cooler morning hours.
The park is open all year. The drier months from June to October are the easiest for hiking, with firmer trails and clearer views. During the rains, especially from about March to May, trails are muddy and rocks slippery, but the forest is at its greenest and the waterfalls are at their fullest.
Checked against the sources on 28 October 2026. Opening times and fees can change — confirm before you go.
General guidance from our specialists, not official information.
Mang'ula village, at the park headquarters, has simple guesthouses and lodges. Mikumi National Park lies a short drive to the north-east, making it easy to pair forest walks with a savannah safari. Further afield, the town of Ifakara and the Kilombero Valley lie to the south-west, and the main highway leads east to Morogoro and Dar es Salaam.
Tanzania · 10 nights5★ LodgeTanzania · 8 nights5★ LodgeTanzania · 5 nights5★ LodgeThis guide was researched from the sources below and reviewed by our team on 28 October 2026. Facts under “Verified information” link to the page they were checked on; travel tips are general guidance. Photos are credited on each image. The ambient recording’s author and licence are shown in the sound player.
