Gokyo Lakes
The water from there goes to the Dudh Kosi through the Taujon Lake and the Longabanga Lake. These lakes are deeper than researchers use to believe. Fourth Lake (Thonak Cho) is the deepest lake which is 62.4 m deep. After that is the Gokyo Lake which is 43 m deep. A direct connection between the Gokyo Lake and the upper Thonak Cho and the Ngozumpa Cho has not been seen. However, these lakes may be connected through an underground water supply. The Gokyo lake system is naturally at risk, as it is in an ecologically risky and unstable zone. The outburst of the Ngozumpa glacier is always a danger to the existence of the lakes.