A minimal level of mobility and fitness is required to participate in the gorilla and chimpanzee trekking activities. However, every morning, the rangers will assign gorilla families to guests based on their interests and level of fitness. If possible, those with physical limitations may be offered a gorilla family that is closer to the ranger station, however, this cannot be guaranteed because it will depend on where the gorillas are on that day and they have free range to move about inside the entire perimeter of Bwindi Forest. Gorilla trekking may include crossing streams, walking up the steep side of Bwindi Forest, ducking down under tree branches, walking on mud, etc. You can hire porters on the day to help carry your backpack.