Gurudongmar Lake, in far North Sikkim, is one of the highest lakes in the world, at about 5,430 metres, and it is a sacred place that leaves you quiet.
Because it lies close to the border, you need a permit, and a registered Sikkim travel agent arranges it for you with a registered vehicle. You reach it on a long, high drive from Lachen. Foreign visitors are generally not allowed to the lake. The height is serious, so you must take real care.
Who needs a permit
You need a permit for every person, because this is a high border area. You cannot drive your own car here. You go with a registered vehicle and a driver, and a registered agent gets the permit in your name before the trip.
The journey, in plain words
You base yourself at Lachen, a small town in North Sikkim, and start very early, often before dawn. The road climbs through bare, wind swept mountains to the lake, which stays partly unfrozen even in deep cold, which is why it is held sacred. You spend only a short time at the top, because of the height, then come down. It is a long, hard day you will remember for years.
How the permit works, in plain words
The Sikkim Tourism Department and the Army control entry to this border zone. They do not give the permit to a walk in tourist. A registered Sikkim agent applies for you, with your identity and photos, and gets the permit before you go. That is why you plan this through an agent or a tour, and stay at Lachen the night before.
For foreign visitors
Foreign visitors are generally not allowed all the way to Gurudongmar Lake. The rule has stood for years, because of the border. If you hold a foreign passport, ask a registered agent what is possible in North Sikkim for you, and plan an alternative such as Yumthang, rather than counting on the lake. [The exact foreigner rule can change, so confirm it with a registered agent. Last checked 13 September 2026.]
Altitude care (please read this)
At 5,430 metres the air holds about half the oxygen of the plains, so the height is a real risk. Spend the night at Lachen first, to let your body adjust. Drink water, move slowly, and eat lightly. If you feel a bad headache, sickness or breathlessness, tell your driver and come down; do not push on. People with heart or lung trouble, and very young children, should take medical advice before this trip.
How to arrange it, step by step
Pick a registered Sikkim agent or a North Sikkim tour that includes Lachen and Gurudongmar. Give your identity, passport size photos and dates, ahead of time. Stay the night at Lachen. Start before dawn with the registered vehicle. Carry the same original identity, because it is checked at the check posts.
Season, so you plan the right months
The lake is best from about April to June and again from September to November, when the road is clear. Deep winter brings heavy snow that can close the route, and the monsoon can block it with landslides. Even in summer it is bitterly cold at the top, so carry warm layers.
Common mistakes to avoid
- The biggest mistake is rushing up without a night at Lachen, which invites altitude sickness. The next is foreign visitors planning for the lake, when they are generally not allowed. Do not try to go without a registered agent and permit. Do not ignore your body at height; coming down is always the right call.
Questions people ask
Can I get the Gurudongmar permit myself?
No. A registered Sikkim agent arranges it, with a registered vehicle.
Can foreigners go to Gurudongmar Lake?
Generally no. Foreign visitors are usually not allowed to the lake, so plan an alternative and confirm with an agent.
How high is it?
About 5,430 metres, one of the highest lakes in the world, so altitude care is essential.
Where do I stay the night before?
At Lachen, to let your body adjust to the height.
When is the best time?
About April to June and September to November, when the road is clear.