Tonle Sap is a lake in the northwest of Cambodia. Belonging to the Mekong River system, Tonlé Sap is the largest freshwater lake in Southeast Asia and one of the most diverse and productive ecosystems in the world. Stretching 155 miles long and 65 miles broad at its widest point, it’s like an inland ocean with vibrant ecosystems and fascinating local communities.

Cambodia is a country located in the southern portion of the Indochinese Peninsula in Southeast Asia. It is 181,035 square kilometres (69,898 square miles) in area with a population of over 15 million in 2019. Phnom Penh is the nation's capital and largest city.