The Gosaikunda Trek is an 8 to 9 day teahouse trek in Nepal's Langtang region that climbs to the sacred alpine lake of Gosaikunda at 4,380 m and crosses the Laurebina La at 4,610 m before descending through the Helambu villages to Sundarijal. A 2026 group departure costs USD 700 to 1,000 per person including the Langtang National Park permit (NPR 3,000) and a TIMS card (NPR 2,000), the same two-permit system used on the standard Langtang Valley route. Gosaikunda is a Hindu and Buddhist pilgrimage site, and the Janai Purnima festival in August draws thousands of pilgrims to its shore, a crowd our scheduled trekking departures avoid by running in spring and autumn instead.
Mingma Tendi Sherpa, who grew up in the Langtang region and has guided 14 Gosaikunda departures, wrote this page and updates its Laurebina La snow conditions each season. The sections below cover the shared Langtang National Park permit, a cost breakdown against the USD 700 to 1,000 range, the Janai Purnima pilgrimage and why we route around it, and the pass-crossing difficulty that separates this route from the gentler Langtang Valley trek.