Gokyo Lake is the dwelling of snakes or Nags; some call it the ‘Nag-Kundas‘ Home of Snakes. Goyo Lakes are located in Sagarmatha National Park at elevations ranging from 4700 to 5000 meters. Six lakes are in total, forming the world’s tallest freshwater lake system. https://www.nepalholiday.com/everest-gokyo-lake-trek