Located in the south-west corner of Uganda the 331 square-kilometer Bwindi Impenetrable Forest is a UNESCO World Heritage Site and is comprised of both montane and lowland forest. The forest is one of the richest ecosystems in Africa, with some 120 species of mammals, 348 species of birds, 220 species of butterflies, and over 27 species of reptiles and amphibians. Bwindi is amongst the most diverse forests in East Africa, with more than 1,000 flowering plant species including 163 species of trees and 104 species of ferns.

Along with the numerous primate species and endangered chimpanzees, the most notable inhabitants of the park have to be the 380 critically endangered mountain gorillas, which live in family groups of between 8 and 25 individuals. A number of these families have been habituated over a period of 5 years each to tolerate human presence for a brief period every day. Only 8 visitors per day are allowed to track each gorilla family.