Bwindi Impenetrable National Park is located in the southwestern part of Uganda on the rim of the Rift Valley. The mist-covered hillsides are sheltered by an ancient and biologically diverse rainforest comprising about 400 plant species. The word “Bwindi” means “darkness” and taking a hike in this magnificent forest will reveal why. In addition to the mountain gorillas there are 346 bird species and more than 200 butterfly species, about 324 tree species – 10 of which are only found in this area in the whole of Uganda. Bwindi is prime habitat for more than half the world’s population of mountain gorillas.