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Gunung leuser Orangutan Heritage Area
Gunung leuser

Gunung leuser Orangutan Heritage Area

Guided wildlife walks

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The Batu Katak Karst Forest is located on the edge of the Gunung Leuser National Park in Bahorok, is the home of wildlife such as Orangutan, Tiger, Sunbear, Hornbill, Slow Lorys, many insects, reptiles and amphibians, and also amorphophalus titanium - an enormous flowering plant with the largest unbranched inflorescence in the world. The population of this area is a small community. This is the home of The Karo, or Karonese people, most of whom rely on local sustainable resources for their own livelihoods. There is a program for ecotourism activities in the forest to see the wildlife and flowers. A local NGO focuses on nature conservation, education, habitat restoration and sustainable livelihood development.

Species or habitat details

This incredible area is one of the few pristine areas that exist outside the National Park. It is home to critically endangered endemic species such as the Sumatran Orangutan and the Tiger, as well as the Siamang and White-handed Gibbons. It is also home to Hornbills, slow loris and Amorphophalus Titanium, the largest flower in the world. 


Environmental degradation and climate change are the biggest challenges for this region. Extraction of natural resources has led to deforestation to grow monoculture plantations, the most damaging of which is the development of palm oil in the area. Currently, the production of palm oil in the surrounding area, poaching, and mineral extraction to produce cement threaten the ecosystem and local community.

Did you know?

The Sumatran Orangutan is an Ape with 97% of its DNA identical to human beings.

When it rains Sumatran Orangutans cover themselves with large leaves of a local plant that serve as an umbrella.

Every evening Orangutans build a bed made of branches and leaves at the top of a ficus tree. 

Sumatran Orangutans like to eat ants as a source of protein. They use a thin stick and place it in an anthill to take several ants at the same time, as if it were a Moorish skewer!

The Orangutan's daily intake of different fruits and flowers make it an essential pollinator in the jungle.

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Why visit a Wildlife Heritage Area?


Visitors to Wildlife Heritage Areas can take part in outstanding wildlife watching experiences that put wildlife first. Staying in a Wildlife Heritage Area helps local communities invest in animal welfare and wildlife conservation, benefitting community well-being and driving forward sustainable practices.

Designated for excellence

Communities achieve Wildlife Heritage Area designation by playing a central role in protecting wild animals and their habitats. With support from responsible travel organisations and wildlife experts, these communities are committed to help turn the tide on biodiversity loss and the climate crisis, adopt a zero tolerance for wildlife suffering in tourism, and advocate for positive change through a willingness to collaborate.


Green Buffer of Gunung Leuser

Green Buffer of Gunung Leuser

For several years we have been working in agreements with the local community of the Karo ethnic group, this ethnic group is one of the oldest which maintains all its knowledge in matters such as traditional medicine based on plants and roots. In ancient times they were forest dwellers and animists, later after colonization they became Christians. Their mix between their true...

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Guided wildlife walks

On our treks we walk through the forest all day in search of these beautiful primates along with other species of fauna and flora present in the area. With our specialized guide and his group of porters we track Orangutans, Gibbons, Sun Bears and Tigers.