Gibbon Trekking in Mondulkiri – Wildlife & Jungle Tours in Cambodia

What Makes Mondulkiri Gibbon Trekking Special

About the Sanctuary

Keo Seima Wildlife Sanctuary (formerly Seima Protection Forest) is managed jointly by Cambodia’s government and the Wildlife Conservation Society. It protects one of the most important blocks of lowland evergreen forest left in mainland Southeast Asia. The Bunong indigenous community plays a central role — local rangers patrol for poachers and loggers, and ecotourism provides income that makes conservation economically viable. When you book a gibbon tour, you’re funding forest protection directly.

When to Go

December through March delivers the best conditions: dry trails, clear mornings, and predictable gibbon behavior. Sighting success during peak season runs above 90%. The wet season (June–October) is still productive — gibbons don’t migrate — but trails get slippery and the pre-dawn trek is muddier. Gibbons are vocal year-round, especially between 5:30 and 7:00 AM.

What Else Lives Here

Keo Seima holds the world’s largest known population of black-shanked douc langurs — striking black, white, and orange primates that move through the mid-canopy. Pig-tailed macaques are common. The birdlife is extraordinary: great hornbills with wingspans over a meter, green peafowl displaying in clearings, and enough woodpecker species to keep a birder busy for a week. Night safaris reveal slow loris, flying squirrels, and civets.

Fitness and Preparation

Day trips involve 4–6 hours of moderate forest trekking on uneven terrain with some steep sections. You’ll be walking before sunrise, so a headlamp is essential. Wear dark, quiet clothing — no bright colors, no rustling fabrics. Binoculars make a big difference. Your guide provides meals, water, and all camping gear for overnight stays.