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Photo: Sergey Mankevich, Public domain via Wikimedia Commons
the world’s highest freshwater lake system comprising six main lakes, of which Thonak Lake is the largest
Gokyo Lakes are oligotrophic lakes in Nepal's Sagarmatha National Park, located at an elevation of 4,700–5,000 m (15,400–16,400 ft). They were named after Gokyo Ri peak. In September 2007, Gokyo and its associated wetlands of 7,770 ha (77.7 km2) have been designated a Ramsar site.
© OpenStreetMap contributors
Gokyo Valley has Nepal’s biggest glacier formation
summit pass located 5420 m above sea level. From the east: after Pheriche, the trail turns off the main Everest route near Dughla (4620m) and passes through the village of Dzongla. From the west: in the Gokyo valley, the trail turns off the Machherma-Gokyo route near the First Lake (4710m) and passes through the village of Thangnak (Dragnag). The pass can be tough and may require crampons on the little glacier on top.
It is advisable to obtain advanced information regarding the conditions before proceeding from Dzongla or Thangnak. Good views of Lobuche Peak.