Lake Kaindy

Kaindy Lake is a 400 meter long lake in Kazakhstan that reaches depths near 30 meters in some areas. It was created by the result of an enormous limestone landslide. This resulted in the submersion of a large portion of the nearby forest. The track to Kaindy lake has many scenic views to the Saty Gorge, the Chilik River valley and the Kaindy gorge. Dried-out trunks of submerged Picea schrenkiana trees rise above the surface.

From: http://en.wikipedia.org/wiki/Lake_Kaindy