Gunung Leuser

Gunung Leuser reserve is 830,500 hectares in size and 500 to 3,500 metres above sea level, and can be reached by road from Medan, North Sumatra. Two research stations within the reserve function as an Orangutan Rehabilitation Station, providing a rare opportunity to see these great apes at close range.
A boat trip on the Alas River which flows through the reserve is a good way to see the rain forest habitat of endangered species of rhinos, orangutans, tigers and elephants. There are also gibbons, leaf monkeys, jungle cats, forest deer, otters, hornbills and arguspheasants. Serown (goat antelope) live in the mountain forests at higher altitude.