Koh Samseb CBET is a Community-Based Ecotourism site developed on the upper Mekong river in Kratie Province, Cambodia.

Koh Samseb, which means 30 Islands, is one of the most scenic landscapes in the Mekong basin. Tourists and visitors can enjoy unique and authentic ecotourism experiences including birdwatching, Mekong boat trips, cycling, forest hiking, and camping.

Managed by the local community, Koh Samseb CBET activities contribute to local socio-economic development and environmental conservation. The generated income is supporting their livelihoods, with a portion dedicated to the protection of the basin biodiversity.