Lake Toba is the largest lake in Indonesia and the largest and deepest volcanic crater lake in the world.
Site of the Lake Toba Festival, the lake was formed 75,000 years ago after a volcano eruption. It is 906 meters above sea level with an average depth of 450m. The lake has an island in the middle called Samosir.
At the introductory 500m lake swim, the newcomer kids swam without goggles, old-school style.
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