All that's now left in Kenya of the massive Guineo–Congolian rainforest that once covered much of western Kenya, the Kakamega Forest National Reserve, though seriously degraded, is unique in Kenya and contains plants, animals and birds that occur nowhere else in the country. The reserve is especially good for birders, but is also home to several primates, including de Brazza's monkeys, colobus monkeys, black-cheeked-white-nosed monkeys and Sykes monkeys.
Trails here vary in length from 1km to 7km. Of the longer walks, Isiukhu Trail, which connects Isecheno to the small Isiukhu Falls, is one of the most popular and takes a minimum of half a day. The 4km drive or walk to Buyangu Hill allows for uninterrupted views east to the Nandi Escarpment.