SOS and OIC have produced a detailed guidebook to the Gunung Leuser National Park. You can download each chapter by clicking below:
Chapter 1 - The Gunung Leuser National Park
Chapter 2 - The Sumatran orangutan
Chapter 6 - Sumatran Orangutan Viewing Guidelines
We have also produced two pocket guidebooks for the popular visitor destinations of Bukit Lawang and Tangkahan. Pleaseclick below to download: