One of Sumatra’s Great Rainforests
Gunung Leuser is part of one of Sumatra’s most important remaining rainforest landscapes. Here, the jungle begins almost immediately beyond the last houses of Bukit Lawang, with giant trees, tangled vines and steep, forested slopes. From your first steps along the trail, you are surrounded by the sights and sounds of the rainforest.
A Jungle Full of Unexpected Encounters
Orangutans may be the stars of the journey, but they are far from the only wildlife you might see. Along the trails, you may encounter Thomas’s langurs, macaques, gibbons, monitor lizards, butterflies, insects and tropical birds. Nothing is staged and no sighting can be guaranteed — part of the experience is never knowing what might appear next among the trees.
Meeting Sumatran Orangutans
For many travellers, the chance to see Sumatran orangutans in their natural habitat is what draws them here. They are among the rarest great apes on the planet, and the forests of Gunung Leuser remain one of their most important refuges. During the trek, you may encounter fully wild orangutans as well as rehabilitated animals or their descendants, high in the forest canopy.
Life at the Edge of the Jungle
Bukit Lawang sits beside a river at the edge of the national park and makes a natural base for exploring the region. After trekking, you can float back downriver on a tubing raft, go for a swim or simply spend time in a village where daily life unfolds alongside the rainforest.
The Snake Man of North Sumatra
One of the more unusual encounters is with the local Snake Man, who has spent years studying snakes and other animals of the Sumatran forest. He shares his knowledge of the region’s reptiles, their behaviour and their role in the ecosystem, offering another perspective on life with the rainforest on your doorstep.
