Mondulkiri is a province in Cambodia and is known for its stunning natural beauty. The most popular ecotourism destination in Mondulkiri is the Bou Sra Waterfall, which is a breathtaking sight and is a great spot for trekking, camping, and bird watching. The Sen Monorom National Park is also a popular destination for ecotourism, as it offers great opportunities for hiking, wildlife spotting, and exploration.