Our planet's lakes make up a huge freshwater reserve delicately balanced between the water that feeds them and the rivers they feed. S1 E1 - Part 1: Lake Nasser S1 E2 - Part 2: Baikal S1 E3 - Part 3: Tonle Sap S1 E4 - Part 4: Lencois S1 E5 - Part 5: The Great Salt Lake - Narrator: David Gasman - Host: Charles Tisseyre