Lachen & Gurudongmar Lake Tour from Gangtok

Lachen is a small village located in North Sikkim at an altitude of 9,000ft with about 250 local families and few hotels & small shops. Its original inhabitants are known as Lachenpas who are a Sikkimese Buddhist community. They are mostly ship and yak herders. However today with growing tourism business, many of them are making their living out of hospitality sector. There has also been influx of people from various other parts of Sikkim to Lachen who too take part in this thriving business. 
Although the distance from Gangtok to Lachen is only 121kms, it can easily take 6 to 7 hours to reach the place by car depending on road conditions. Tourists come to Lachen mainly to visit the famous and picturesque high altitude Gurudongmar Lake which is located further up at an altitude of 17,800ft near Indo-China (Tibet) border at a distance of 66kms from Lachen. 
There is no proper tourist accommodation beyond Lachen. So almost all tourists visiting Gurudongmar Lake stay at Lachen overnight before proceeding to the lake next morning. And along with the lake, a typical tour also combines Chopta Valley, a beautiful valley located in-between Lachen and Gurudongmar which gets covered with flowers in spring and with snow during winter. 
From Gangtok, you need to take the North Sikkim Highway. The road passes through villages like Phodong, Mangan, Tong etc before reaching Chungthang, a beautiful settlement which is about 95kms from Gangtok and takes about 5 hours to reach. 
Chungthang Valley and Settlement 
Chungthang Valley 
Photo: Ankur Panchbudhe/flickr 
If you do not want to keep Gangtok in your tour plan, you can also come to Mangan directly from NJP station or Bagdogra airport (takes 6+ hours by car). Mangan is the head quarter of North Sikkim district and hotels here can also arrange for all north Sikkim tours. You can stay here overnight (there are nice hotels in Mangan) and proceed next morning. 
From Mangan, you will see river Teesta flowing alongside all the way up to Chungthang. The river of course flow in the opposite direction (from north to south). Note that Chungthang is the place where River Teesta actually becomes a river although its source lies far above in glacial lakes such as Tso Lhamo Lake (5,330 meters, highest altitude lake in India and 14th highest in the world). 
The road at Chungthang bifurcates. The one towards right goes to Lachung which is about 22kms towards north and onward to Yumthang Valley. The road to the left known as 'Lachen Road' goes to Lachen settlement which is about 26kms from Chungthang and takes about 1 hour 15 minutes. 
Since Lachen and Lachung are close to each other, many tourists make a combined visit of Lachen & Gurudongmar lake with Lachung & Yumthang Valley. Lachen to Lachung takes about 2 hours. 


Lachen means 'Big Pass'. This small village at an altitude of 9,000ft is a valley with grassy land and scattered forests of Rhodendrons and conifers. The mountain stream Lachen Chu flows through it in deep gorges and on the other side of the river are large mountains with pine forest and snow peaks. Note that in Sikkim, the word 'Chu' means a stream or a river. 
Lachen, North Sikkim 
Lachen, North Sikkim 
Road condition from Gangtok up to Lachen can be quite rough in patches. Due to landslides (particularly in monsoons), the road is frequently damaged and requires continuous maintenance. 
While tourists get to Lachen mainly to visit Gurudongmar Lake, there are reasons to spend some time in Lachen itself. Lachen Monastery is one of the oldest in Sikkim and built in 1858. It was then a small hut-like structure with only 6 monks. But later in 1977 with financial aid from Sikkim Government, it was reconstructed to its current form. 
The Monastery follows Nyingma Sect of Tibetan Buddhism. Couple of noteworthy artifacts in the monastery includes a stone in a casket having footprint of Kham Gomchen who stayed at the monastery, another one is a stone looking like a decorative container which has been kept on the altar and preserved by the monks as a religious artifact. There is an open area in front of the monastery offering lovely view of the valley and mountains surrounding it. 
You should also visit the Handicraft Center of Lachen located in the market area. The original residents the Lachenpas have been weaving carpets, shawls, blankets, bags etc since ages. They are made of yak and ship wool. This is a great place to see many such samples and watch some of the local ladies weaving them. There are wood crafted items as well like Buddha's idols. 
There is also a Tourist Information Center at Lachen. You can get post cards, maps etc here. 

Journey from Lachen to Gurudongmar Lake

This is the largest lake in Sikkim, one of the highest in the world and considered very sacred by both Buddhists and Hindus. You should start from Lachen early in the morning (by 3:30am) because you need to be back by lunch time. The weather near Gurudongmar usually starts becoming bad as the day progresses, so you need to leave the lake area and start for Lachen by around 9am. But the early start is not a problem because the daylight here breaks very early too. 
The staff at your hotel in Lachen will wake you up at around 2:30-3:00am to get ready. The journey usually starts while it's completely dark. Your first stop is at Thangu, a tiny hamlet with only handful of village huts and a large army base. 
There are two primary differences between the journey from Lachung to Yumthang and Lachen to Gurudongmar... 1) on the way to Yumthang, the view gets limited by the narrow valley, but to Gurudongmar, you can see much wider and distant places, lesser natural obstacles to limit your views. 2) there is always a cold breeze flowing from Tibet in the north while approaching Gurudongmar. This doesn't exist in Yumthang because of Donkiala pass acting as a natural wall. 
Thangu is a valley with lush meadows located at an altitude of 13,000ft and about 35kms north of Lachen. It takes about 2hours to reach Thangu from Lachen. Within couple of hours the altitude changes by about 4,000ft. So you can imagine how steep the road is. There are a few stalls here where you can take tea and have hot noodles for your breakfast. 
Halt at Thangu for breakfast 
Thangu Village 
You can distinctly see the change in foliage as you get to Thangu. From green forests or large trees, the foliage changes to mostly smaller bushes. If you visit during May/June, you can see the valley full of beautiful alpine flowers. From November onwards, the valley gets covered with snow till March. 
Not until long ago, almost all villagers from Lachen would move to Thangu during summers and take advantage of the lush green meadows here to herd their yaks. But with growing tourism and change in ways of living, most now stay back at Lachen. The resident villagers in Thangu are mostly nomadic tribes. Some have immigrated from Tibet after Dalali Lama left Tibet in 1959. 
Although there are some basic accommodations at Thangu, tourists require special permit from Indian Army to stay here due to nearby border area. You can apply for such permit at Gangtok or Mangan through a registered tour operator. If the weather is bad further up or snowing heavily, the army men posted at Thangu would send the vehicles back. And sometimes tourists return from here due to high altitude problems. So getting to Gurudongmar Lake requires some luck. 
From Thangu the distance to Gurudongmar is about 31kms. Although the distance looks short, it requires about 2 hours to reach Gurudongmar from Thangu (so a total of about 4 hours from Lachen). This is because from Thangu it's a gravel road (made of stones & boulders) and very rough. Only large vehicles like Scorpio, Bolero etc can negotiate this road, and vehicles move slowly. 
Thangu is the last civilian settlement along this route. As you move along, you can see the northern peaks of Kanchenjunga ridge to your left and straight ahead is the stunning Chungkhang peak... about 20,000ft high and appears like a massive wall of ice. 
Thangu to Gurudongmar, Chungkhang peak ahead 
Photo: Ankur Panchbudhe/flickr 
Further along the way, the gradient becomes easier and you will come to the Giagong Check Post... this is the last army check post on this route and located at an altitude of 15,000ft. This is one of the highest altitude check posts in the world. This is where your papers will be checked for the last time before you reach Gurudongmar Lake. 
You will now be driving through a high alpine plateau (similar to Tibetan Plateau), there is hardly any vegetation and you will see rocky mountains all around other than some scarce rhododendron bushes. If you have been to Ladakh, you can see a striking similarity between the two terrains. 
Alpine Plateau on the way to Gurudongmar 
Alpine Plateau to Gurudongmar 
From Giagong up to a place called Dokung, you will keep moving northward. From the left, a wonderful snow peak of the main Himalayan range will come closer as you move ahead... this is Chomo Yummo which is 22,405ft high and located at a distance of 10-12kms from here, but appears at a stone's throw... it' brown at the lower half and has white snow cap on the top... amazing sight. 
To your right will be Mt. Kanchenjhau of similar height and at a similar distance, next to it is Mt. Gurudongmar and at the foothill is this saffron desert or plateau. In the middle of it is the course of Teesta, and all this combined with the blue sky above and numerous unnamed mountains around create a different dimension of beauty that can only be experienced when you tread this route. 
But there are only two problems here... it's difficult to come out of the car because the cold stormy wind is almost unbearable, and there are landmines that lay underground in this plateau and there are wire-fenced barricades so that yaks and cars do not stray into the danger zones. 
The road is known as Gurudongmar road and shortly after Dokung, from a northward direction the road now veers towards east. 1km before Gurudongmar Lake, there is a bifurcation. from here, a road continues ahead to Tso Lhamo lake (or Cholamu lake) which is 9kms away from this point and 10kms from Gurudongmar Lake, and located at an altitude of 16,700 ft. Tso Lhamo lake is fed by glaciers and is one of the highest altitude lakes in the world. It is the source of the River Teesta
From the bifurcation point, you need to take right to stay on Gurudongmar road which goes uphill to and gets to Gurudongmar lake in 10 minutes. 

Gurudongmar Lake

Gurudongmar lake is located at an altitude of 17,800ft and covers an area of 290 acres making it the largest lake in the whole of Sikkim. It's surrounded by snow clad mountains making it a stunningly picturesque site. You can see the reflections of the snow peaks of Mt. Gurudongmar and Kanchenjhau on the water... both are connected by a snow ridge. To their left is a large space filled with snow that ends at the magnificent peak of Mt. Pauhunri located at a distance. 
Gurudongmar Lake 
Gurudongmar Lake 
Photo: Ankur Panchbudhe/flickr 
During winter, the lake freezes except for one small area. The Buddhists and Hindus believe that this specific area is blessed. In fact the whole lake is considered holy and is believed to be having many healing powers. You will see Buddhist prayer flags fluttering on the sides of the lake. 
Gurudongmar Lake 
Gurudongmar Lake 
The Gurudongmar lake has been named after Guru Padmasambhava (an 8th-century Indian Buddhist master) who came here on his way back from Tibet. There is a legend associated with him and the lake. Since the lake used to completely freeze during winter and could not be used as a source of drinking water during such time, the locals pleaded to Guru for a solution. 
Guru agreed and placed his hands on one point of the lake, and it is this point where the water never freezes any longer. Since then the lake is considered holy and devotees collect sacred water in containers. There is a small temple of Guru Padmasambhava next to the lake and you can see hundreds of colorful prayer flags fluttering as a cool breeze flows in from the lake. 
Snow covered Gurudongmar Lake 
Gurudongmar Lake 
One needs to be careful at such high altitude and not indulge in hectic activities. However, some tourists in their excitement do so and end up in breathing related problems. The army staff are often seen serving tea and snacks and advising tourists to be careful. 

Chopta Valley

On your way back from Gurudongmar, stop at Chopta Valley located at an altitude of 13,100ft near Thangu. It's only 2kms from Thangu on a short diversion. This is a picture perfect valley. 
During spring and summer, and even in monsoon (April to September) the valley is carpeted with flowers such as primula, rhododendrons and several different kinds of wild flowers. 
Chopta Valley, North Sikkim 
Chopta Valley, North Sikkim 
Photo: Ankur Panchbudhe/flickr 
And during winter however the valley is snow covered. This is where you can walk over frozen river during the winter time. Spend some time here and proceed to Lachen via Thangu. 
Read Explore Chopta Valley to know how to visit and what can you experience there. 

How to visit Lachen & Gurudongmar

Being a protected area, you need to get Protected Area Permit issued by Tourism and Civil Aviation Department of Sikkim. You should contact a registered tour operator in Gangtok to get this done minimum one day before you start for Lachen. Foreigners are not allowed in Gurudungmar Lake because this is an international border area. Foreign nationals can go only up to Chopta Valley. The permits are checked at several places along the way including Mangan and Tong. 
Permits are not issued to children below 5 years (officially not allowed). If you are travelling with a child below 5 years, there is high possibility that the child won't be allowed by army personnel beyond a check post shortly after Thangu. This is due to the high altitude problem (mainly lack of oxygen) that the child may suffer from. So taking a child below 5 to Gurudongmar is not recommended. The same such restriction would apply for senior citizens above 65. This is however subject to the discretion of the army personnel posted at the check post. 
Visit How to get Permits in Sikkim for complete information about getting necessary permits for touring various parts of Sikkim including Guridongmar lake. 
Although you may find several individual drivers in Gangtok who can help arranging the entire tour including vehicle, permits and hotels at a cheaper rate, I strongly recommend that you should visit Lachen/ Gurudongmar lake and Lachung/ Yumthang only through tour operators who are registered with Sikkim Tourism Department. Click here for some of such well known operators

Best time to visit Gurudongmar Lake

Spring and summer (i.e. March to June) is a great time to visit Gurudongmar... this is the time when the temperature is quite bearable (varies from a high of 5°C to a low of -5°C) and the weather is at its best offering lovely view of the lake with blue waters as well as the snow mountains surrounding it. Along the way to Gurudongam lake, you will get to see nice greenery at the lower reaches. 
However, if you  want to choose the very best time for Gurudongmar, then go during April or May... this is the time when rhododendrons are in full bloom and you can see those beautiful flowers at the lower reaches as well as in Chopta valley... it's an added bonus. The temperature ranges between -2°C to 0°C during this time. Sometimes, however, there are snow storms in April. 
Another great time to visit Gurudongmar is during October to November when the weather remains clear and the temperature usually hovers between -2°C to 0°C. In November, the lake usually gets partially frozen. Beginning of December is a great time to see snow covered Chopta Valley, walk over the frozen river, and if the route is open, then proceed onwards to Gurudongmar and see the frozen lake surrounded by snow mountains. Temperature in early December ranges between -8°C to -10°C. 
Note that you should avoid trying to visit Gurudongmar lake from late December until the end of February... this is the time (particularly in January and February) when heavy snowfall takes place and the route often remains blocked and the lake inaccessible. The route is, however, not officially closed during this time, but even if you manage to go up, there is every possibility of snowfall on your return and you may get stuck there for a long time. There had been occasions when such stranded tourists had to be rescued by the army men. Temperature can get down to -20°C around this time. 

Suggested Tour Plan from Gangtok

Only Lachen/Gurudongmar 
  • Day1: Reach Lachen from Gangtok, overnight stay at Lachen. 
  • Day2: Start early (by 4am), visit Gurudongmar lake & Chopta Valley, return to hotel, have lunch and proceed to Gangtok. Overnight stay at Gangtok. 
    Combined tour of Lachen & Lachung 
  • Day1: Reach Lachen from Gangtok, overnight stay at Lachen. 
  • Day2: Start early (by 4am), visit Gurudongmar lake & Chopta Valley, return to hotel, have lunch and proceed to Lachung. Overnight stay at Lachung. 
  • Day3: Star early, visit Zero Point, Yumthang Valley, return to hotel, have lunch and proceed to Gangtok. Overnight stay at Gangtok. 

    Indicative Tour Package Cost

    You should note that North Sikkim tour cost can vary widely depending on several factors such as: 
  • High or Low season. Usually the high seasons are between April 1 - June 30; September 15 - October 30; December 20 - January 5, and the rates are quite higher in high season. 
  • Category of vehicle. A luxury package would usually include a vehicle like Innova, Scorpio or Xylo; while a budget package would include a Sumo, Bolero or Mahindra Max. 
  • Category of Hotel - luxury hotel, mid-priced hotel  or a budget lodging. 
  • Your group size. A large vehicle can accommodate up to 7-8 persons. So more the number of persons, the per-person cost comes down. 
  • Tour operator. Rates of high-end tour operators with established brand names would charge higher package rates, but they would be more reliable than the unknown ones. 
    Fare updated: March 2022 
    To give you an idea... a 3-day/2-nights tour package from Gangtok to Lachen (including Gurudongmar Lake) and Lachung (including Yumthang) would cost around Rs. 30,000 for two persons in high season for a mid-priced package that includes mid-range hotels on AP plan (i.e. breakfast & dinner), local sightseeing on the way and a reserved vehicle like Sumo, Bolero or Max. The same package would cost around Rs. 25,000 in low season. The cost includes the permit fees. 

    Where to Stay

    Lachen has plenty of Hotels. Once you select a hotel, you can ask your tour operator to book that and include it in their package. But remember, you are likely to stay at Lachen only for one night, and leave by early morning for Gurudongmar, return to the hotel for lunch and head back to Gangtok or your next destination. So you are staying here basically to spend the night. 
    The best hotel by far is Apple Orchard Resort which is a 3star category hotel. Rooms are nice with wooden floor paneling to keep them warm. They also provide room heaters and hot water bags. There is in-room coffee/tea maker, phone, geyser in bathrooms etc. You get nice view of mountains and waterfall at the front side. They have a dining lounge serving meals. 
    Email : [email protected]; Cell : +91- 9474837640 / +91-96098 20029 
    Another one is Hotel Hill Retreat which is a budget hotel. They have recently renovated the rooms. Rooms have tea/coffee maker, TV, 24hrs hot water in the bathroom, room service, generator backup for lights etc. So if there is power cut (which is quite common in Lachen), there won't be any hot water. They have standard and deluxe rooms both for double and triple occupancy. Meals are included in rates. The hotel is located on Lachen Road, Near Old Lachen School. They have another budget hotel in Lachen called Snow Retreat. But the Hill Retreat is generally preferred by tourists. 
    Email: [email protected]; Phone: (+91) 9007352111; 9432324780 
    Hotel Himalayan Residency is a mid-priced hotel. It's run and managed by a family, so you will feel like a home stay. Do not expect professional service. The rooms are nice though. Wooden floor and paneling, LCD TV, western style attached toilets. Food here is pure vegetarian. There are intermittent electricity problems in Lachen. Although they have generators, they may not always switch it on when required. Email: [email protected]; Phone: (+91) 94340 54777; 97331 00777 

    What to carry

    Carry enough warm woolens in all seasons as it can be biting cold at the higher reaches. Carry all your medication particularly for any high altitude sickness. If you have heart or breathing problems, avoid visiting Chopta Valley or Gurudongmar. There are no ATMs here, so carry enough cash. 

    Recommended Resources

    If you are planning to visit Darjeeling or Sikkim, the eBook on Darjeeling & Sikkim can be very handy in knowing all the best places, sightseeing tours & operators, eateries, nightlife, shopping and lot more, and would serve as a guide to effectively make your tour plan. 

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    Visitors' Reviews/Comments

    Partha (September 2021) 
    Hi, I found your site extremely helpful. Me and one of my friend (Age 53 and 61 respectively) are planning to visit Lachen, Gurudongmar, Lachung, Chopta Valley during 3rd week of February. Is that possible? How will be the weather condition at that time? 
    Raj ( September 2021 
    Hello, it is advisable not to visit Gurudongmar in February, the route is often blocked due to heavy snowing. It is also not a great time to visit Lachung/Yumthang... it can be extremely cold out there. March onwards is a good time to visit these places until June, and then October to early December. 
    Piyali (March 2021) 
    I find your website very very informative and helps in planning the itinerary in the best possible way. My query is since my 11 Year old daughter is US Citizen, will she be allowed to visit Gurudongmar Lake.? We hold Indian passports 
    Raj ( March 2021 
    Unfortunately, she won't be allowed to visit Lachen/Gurudongmar on a US Passport. 
    Ritam Banerjee (June 2019) 
    Hello Mr. Raj, is it possible to visit Lachen/ Gurudongmar and book hotel individually, I mean bypassing package tours operated by tour operators. Last December I had a bitter experience while visiting Lachung & Yumthang through a package. Food & Hotel (Hotel White Lily) were worst in my entire tourist life, car driver was the slowest driver in entire Sikkim, I suppose. So, I want to book hotel myself & just want to avail the car service for Gurudongmar from Gangtok.  Is this possible? 
    Raj ( June 2019 
    Hello, the tour operators in Gangtok will usually try to sell a full package for north Sikkim tours that includes accommodation, however you can always mention the hotel of your choice and they will accordingly price the package. But if you only want the transport, then the best option is to go down to Vajra taxi stand (near Vajra Cinema Hall) ... taxis at the stand here go to north Sikkim. You can work out a deal with a taxi driver and arrange for your permits. You can then choose your own hotel as well. 
    Ashish (May 2019) 
    Hi, I plan to visit Gurudongmar lake with my 9 year old son but have been cautioned that army may not permit children below 10 years. Could you kindly guide. Thanks. 
    Raj ( May 2019 
    The age restriction at Gurudongmar Lake is for children below 5 years. 
    Saswat Sambit (March 2019) 
    Hi Raj. First, i would like to thank you for this wonderful website. Coming back to my query, we are planning to visit Lachen in June and wanted to know if we can club Cholamu lake also with Gurudongmar lake. Does it require a separate permit? 
    Raj ( March 2019 
    Hi, it's difficult to get the special permit for Cholamu (Tso Lhamo) lake these days. It requires a Protected Area Permit (PAP) with permission from the army which is hardly issued to civilians. Also the stretch of the road between Gurudongmar Lake up to Tso Lhamo is very bad... most tour operators won't be ready to use their vehicles on that road. 
    Anne (November 2018) 
    Hi Raj, may i know whether foreigner (im a Malaysian) is allowed to go to Gurudongmar Lake? There are 4 of us in a group. Looking forward to receiving your reply. Thank you. 
    Raj ( November 2018 
    Hi, foreign nationals are not allowed to visit Gurudongmar lake. You can go up to Lachen and then till Chopta Valley, beyond that you will be stopped at the check post. 
    Suvojeet Dutta (August 2018) 
    Hi Raj, me and my family are planning to visit Gurudongmar Lake on the last week of November from Kolkata. Please guide me about the weather condition at that time. 
    Raj ( August 2018 
    It will be biting cold up there at the lake during last week of November... take adequate precautions for cold and do not stay there for more than 20-30 minutes. 
    Indumathi (July 2018) 
    Hi Raj, This site is so wonderful. We have planned our itenaries based on your reviews and plans. We have plans of visiting the famous Gurudongmar lake in the first week of October. We are travelling from Bangalore. We wanted to understand how would be the weather around this time to reach Gurudongmar lake ? Thanks, 
    Raj ( July 2018 
    October is usually a great time to visit Gurudongmar lake. Temperature during the day time would be close to zero degree Celsius. You should not stay there for more than 30-40 minutes... oxygen level there is quite low. 
    Krishna Agarwal (May 2018) 
    I am a nepali citizen and I want to visit Gurudongmar lake is it possible to get the permit for Nepali citizen. I have got all the documents passport citizenship voter id card driving license. 
    Raj ( May 2018 
    Unfortunately no foreigner is allowed at Gurudongmar lake. 
    Srinath Arava (October 2017) 
    Hello, Your posts are awesome and really appreciate the time you take in responding to our queries. This really helps in improving the tourism for Sikkim. 2 queries from my side:  
    1. Can I plan to stay at Mangan and then make trips to Lachen and Lachung? 
    2. Can I get the permits for Nathula pass, Lachen, Lachung done earlier instead waiting for the day before visit. Thanks & Regards, 
    Raj ( October 2017 
    Hi, there are few hotels & homestays in Mangan where you can plan to stay if you want and cover Lachen & Lachung. Most accommodations there are basic. Suggest you work through a registered tour operator in Sikkim to get your permits in advance. 
    K M Shah (January 2017) 
    Sir, Let me thank you at the outset for the wonderful and useful information you are providing. I am 72 year old and want to tour Darjeeling and Sikkim from 15th April.  I want to travel to north Sikkim.  Is it advisable for me to travel to Gurudongmar lake? 
    Raj ( January 2017 
    If you are physically fit and have no breathing or heart related problems, then you can visit Gurudongmar.