Tonle Sap, Cambodia

Tonlé Sap, Cambodia (25 February, 2006)


Tonle Sap, the Great Lake of Cambodia, is an immense freshwater lake on mainland Southeast Asia. Also written Tonlé Sap, the lake has a unique characteristic in that its surface area expands and contracts according to the season in the year. During the dry season, from November to May, the Tonle Sap is between 2500 - 3000 sq km in area, making it still larger than the volcanic crater lake of Lake Toba in Sumatra, which weighs in at "only" 1103-1265 sq km. However, as the depth of Tonle Sap is only about 10 m at most, Lake Toba holds a much higher volume of water, 240 km³ vs only 40 km³ at Tonle Sap.

The Sap River flows out of Tonle Sap and links to the Mekong at Phnom Penh downriver. Its link to the mighty Mekong River creates a very unusual phenomenon that happens every year around June or July. May to October is the wet season of the southwest monsoon. During this period, the volume of the Mekong River increases so much that it causes the Sap River to reverse its course, pushing the water backwards into into the Tonle Sap, expanding the lake to as much as 8000 sq km, even 11000 sq km in some years, and filling it with rich sediment.

This annual back-and-forth flow creates a rich breeding ground for fish, and that in turn ensures a rich biodiversity for the Tonle Sap region. The Tonle Sap was enlisted as a Unesco biosphere in 1997.

People live in floating houseboats as well as in stilt houses on the Tonle Sap. They include Muslim Cham people and migrant communities from Vietnam. Their whole life revolves within this unique ecology above the tea-coloured waters of the lake. I visited the Tonle Sap when I was in Siem Reap to explore the ruins of Angkor.

Farmer bringing produce to the floating market on Tonlé Sap (28 February, 2008)


Seagulls perched on stilts over the Tonlé Sap (25 February, 2006)


Birds flying over the surface of Tonlé Sap (25 February, 2006)


Tourist boats waiting to ferry passengers. (25 February, 2006)


The dirt road towards Tonle Sap (25 February, 2006)


Houses are on stilts to stay high and dry in wet season. (25 February, 2006)


Brown waters of the Tonle Sap against the clear blue sky. (25 February, 2006)


Children at play on the lake. (25 February, 2006)


Floating convenience store (25 February, 2006)


An assembly of birds (25 February, 2006)


Birds at Tonle Sap (25 February, 2006)


Birds taking flight. (25 February, 2006)


Birds at flight on the Tonle Sap. (25 February, 2006)

List of Lakes in Asia

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Dear visitor, thank you so much for reading this page. My name is Timothy Tye and my hobby is to find out about places, write about them and share the information with you on this website. I have been writing this site since 5 January 2003. Originally (from 2003 until 2009, the site was called AsiaExplorers. I changed the name to Penang Travel Tips in 2009, even though I describe more than just Penang but everywhere I go (I often need to tell people that "Penang Travel Tips" is not just information about Penang, but information written in Penang), especially places in Malaysia and Singapore, and in all the years since 2003, I have described over 20,000 places.

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