Religiously having great significance, the Gosain Kunda lake is an alpine freshwater oligotrophic lake. Located at an altitude of 4,380 m (14,370 ft) in the Langtang National Park, the lake has a surface area of 13.8 ha (34 acres). Frozen for six months from October to June, it is one of the sources of the Trishuli River. The Gosaikunda Lake is particularly famous for having been the first lake to come into existence when Lord Shiva plunged his trident into the rock. There are 108 lakes in this area, small to medium in size. The challenging Lauribina La pass at an altitude of 4,610 m (15,120 ft) is on its outskirts. Gosaikunda can be reached easily by bus or by flight, but most eager and willing trekkers decide to trek that up to the sacred Gosaikunda Lake. The trek would take up to 5-6 days if the trek began from Dhunde. Daily buses can be found from Kathmandu- Dhunde or Pokhara - Dhunde. The most auspicious occasion for the lake is the Full Moon day (Shrawan Purnima) in July. Many pilgrims from both India and Nepal travel up to visit the lake then.