28 JUNE 2006 - CHONG KHNEAS, SIEM REAP, CAMBODIA: Classes in a floating school in the floating village of Chong Khneas, at the northwest end of Tonle Sap Lake, Cambodia's vast inland sea. More than 2,500 people live on the lake in houses that move as the lake expands and contracts with the seasons. During the dry season the lake covers about 2,500 square kilometers. At the peak of the rainy season the Tonle Sap swells to more than 13,000 square kilometers. Photo by Jack Kurtz / ZUMA Press