Each August the ice-locked Merzbacher Lake on the Northern Inylchek Glacier bursts through its ice wall and the lake empties, to refill after some time again with the melted glaciers that surround. What's more interesting is that only a part of a lake drains. The lake is 4 km long and 1 km wide and is divided into two parts by a bridge of ice. The North-Eastern part of the lake is always full of water, but another part drains and sometimes even twice a year. It very dangerous to be their, especially in summer period, nobody known, when the ice will break and water go away through the ground tunnels. It was the German geographer and mountaineer Gottfried Merzbacher who first discovered the lake in 1903 while leading an expedition to the central Tian Shan. Their aim was to reach the 7010 summit of Khan Tengri Peak. But the ice-covered rock forced the group back. Returning here with the colleagues by the path between Northern and Southern Inylchek Glacier, Merzbacher came across a clear lake, now named after him. While the expedition was still working in its vicinity, the lake emptied. This was a great surprise for him and his colleagues. Returning back here in a year Merzbacher found this lake full of water again and was astonished by the miracles of nature.
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