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Chadar Trek on the Frozen Zanskar River: Plan It the Right Way

In deep winter, parts of the Zanskar river freeze into a sheet of ice. Walking on this ice, called the Chadar, is one of the toughest and most special winter treks in India.

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Last updated: 02 November 2026 ยท Reviewed by Discover Zanskar team, Trip planners for the Zanskar Valley

Quick answer

What is the Chadar trek and when can you do it?

The Chadar trek is a winter trek on the frozen Zanskar river in Ladakh. Trekkers walk on the ice sheet, called the Chadar, and camp on the river banks and in caves. It usually runs in the coldest weeks of January and February, starts from Leh, and needs good fitness, warm gear and acclimatisation.

Key takeaways

  • The Chadar trek is a walk on the frozen Zanskar river in deep winter.
  • The usual season is the coldest weeks of January and February; ice changes every year.
  • Plan a few full days in Leh to acclimatise before the trek starts.
  • Recent seasons have had rules on acclimatisation, medical checks and fees; check the latest.
  • Nights are far below zero, so proper winter gear is a must.
  • A good local team, flexible dates and a spare day make the trek safer.

What is the Chadar trek?

The Chadar trek is a winter walk on the frozen surface of the Zanskar river in Ladakh. "Chadar" means a sheet or blanket, and it describes the layer of ice that forms over the river in the coldest months.

For a long time, the frozen river was a winter path for people of Zanskar. When snow closed the high passes, villagers walked on the ice to reach the Leh side for trade and other needs. Trekkers now follow part of this old route, walking on ice between steep rock walls of the Zanskar gorge.

Chadar: The local word for the sheet of ice that forms over the Zanskar river in winter. The trek takes its name from it.

The Chadar trek is not like a normal summer trek. The path changes every day as ice forms, cracks and melts. Your guide reads the ice and decides where to walk. Some days you may walk on the bank or on rocks where the ice is weak.

If you want to see Zanskar in summer by road instead, look at our Zanskar tour package.

When is the Chadar trek season?

The Chadar trek season is usually in the coldest weeks of January and February. The exact window depends on how well the river freezes that year, so dates are never fixed.

Some winters are colder and the ice forms well. In warmer winters the ice can be thin or broken, and the trek may be shortened or stopped. Local authorities and trek teams decide based on conditions on the ground.

TimeWhat it is usually likeOur view
Late DecemberIce still forming in many placesOften too early; check before you plan
JanuaryVery cold; ice forms over longer stretchesMain season for many groups
FebruaryStill very cold; ice can start to weaken later in the monthGood, but keep dates flexible
MarchIce melts in many stretchesUsually over for the trek
Season dates change every year. Always check the latest official update from the Leh district administration before booking flights. Keep your return flight flexible if you can.

For a full view of seasons in the valley, read our best time to visit Zanskar guide.

What does a sample Chadar trek plan look like?

A Chadar trek plan usually has a few full days in Leh to acclimatise, a drive to the trek start point, several days of walking on the ice, and a return to Leh. Here is a sample; the real plan depends on ice conditions and current rules.

  1. 1

    Day 1: Arrive in Leh

    Fly into Leh and rest completely. Do not walk around much on day one. Drink warm water and sleep early.

  2. 2

    Day 2: Rest and short walks

    Short easy walks in Leh town. Keep your body warm and let it adjust to the height and cold.

  3. 3

    Day 3: Acclimatisation and checks

    More rest. In recent seasons, trekkers have had to complete a medical check and paperwork in Leh before the trek. Check the current process.

  4. 4

    Day 4: Drive to the start point and first walk

    Drive from Leh along the Indus and into the Zanskar gorge to the start point. Short first walk on the ice to the first camp.

  5. 5

    Days 5 to 7: Walk deeper into the gorge

    Walk on the ice each day, with camps on the river bank. Well-known spots on the route include the Tibb cave area and, further on, the frozen waterfall near Naerak, if ice allows.

  6. 6

    Days 8 to 9: Walk back

    Return along the same river to the start point. The ice may look very different on the way back.

  7. 7

    Day 10: Drive to Leh

    Drive back to Leh, rest and enjoy a hot meal. Keep one spare day before your flight.

How far you go depends on the ice that year. Your guide may turn the group around early if the ice is not safe. This is normal and it is the right call. For winter camping basics, see our Zanskar camping package page.

How difficult is the Chadar trek?

The Chadar trek is hard mainly because of the cold, not because of steep climbs. Most of the path is flat, but walking on ice for hours in temperatures far below zero tests your body and mind.

What makes it hard

  • Night temperatures can drop to around minus 20ยฐC or colder, and days are also below zero.
  • Walking on ice needs slow, short steps, like a shuffle, which tires your legs.
  • You may need to climb over rocks or walk on the bank where ice is broken.
  • Toilets are basic, and washing is very limited in the cold.
  • There is no mobile network for most of the trek.

Who can do it

A healthy person with good basic fitness and some trekking experience can do the Chadar trek with the right team and gear. You should be able to walk for several hours a day and handle cold well. It is not a good choice for small children, or for anyone with heart, lung or blood pressure problems. Talk to your doctor before you book.

FactorChadar trekTypical summer trek in Zanskar
SeasonJanuary to February (depends on ice)Summer to early autumn
Main challengeExtreme cold and iceAltitude, passes and long days
TerrainMostly flat ice, some rocksTrails, passes, river crossings
NightsFar below zeroCold, but much milder
NetworkNone for most daysVery limited

Need help with Chadar Trek?

Talk to the Discover Zanskar team. Free first call, simple advice, clear quote.

How do you get fit for the Chadar trek?

Start training at least six to eight weeks before the trek, with regular walking, stairs, light jogging and leg strength work. Good fitness helps your body handle cold and altitude better.

  • Walk or jog most days of the week and slowly build up the time
  • Climb stairs with a light backpack two or three times a week
  • Do squats, lunges and core work for balance on ice
  • Practise breathing and stretching to stay relaxed
  • Sleep well and avoid alcohol and smoking in the weeks before
  • Get a health check-up from your doctor before you leave home

Fitness does not stop altitude sickness, but it helps you recover faster each day. Acclimatisation in Leh is still the most important step. Read our Zanskar travel tips for simple altitude advice.

What rules and permits should you check for the Chadar trek?

In recent seasons the Ladakh authorities have set rules for the Chadar trek, such as a fixed acclimatisation stay in Leh, a medical check, insurance and fees. Rules can change every year, so check the latest official update before you plan.

  • Acclimatisation: plan a few full days in Leh before the trek. Recent rules have asked for this.
  • Medical check: be ready for a health check in Leh before you are allowed to start.
  • Insurance: you may be asked for insurance that covers the trek. Check what is needed.
  • Fees: there may be fees for environment, wildlife or local bodies, paid in Leh.
  • Registered teams: trek with a local team that follows the current rules.

We do not make up rules. When you plan with us, we share the latest information we have and tell you to confirm it with official sources. You can start with the Leh district website at leh.nic.in.

If you fail the medical check, you may not be allowed to trek that season. This is for your safety. Keep travel plans and bookings flexible.

What should you pack for the Chadar trek?

Pack for extreme cold: many warm layers, a down jacket, warm gloves, a balaclava, thick socks and waterproof boots or gumboots. Your guide will tell you what the team provides and what you must bring.

ItemWhy you need itTip
Thermal inner layers (2 sets)Base layer for warmthKeep one dry set only for sleeping
Fleece and a heavy down jacketMain warmth in the day and at campA hood helps a lot in wind
Waterproof pantsStays dry on wet ice and snowLayer over thermals
Gumboots or winter trekking bootsGrip and dry feet on iceMany trekkers use gumboots on the ice; ask your team
Woollen socks (several pairs)Cold feet are the biggest problemChange into dry socks every evening
Gloves (inner and outer)Protect fingers from frostbiteCarry a spare pair
Balaclava, woollen cap, sunglassesFace, head and eye protectionSun on ice and snow is strong
Sleeping bag rated for deep coldWarm nights in tentsCheck if the team gives one, and its rating
Water bottle with cover, thermosWater freezes fastKeep bottles inside your sleeping bag at night
Basic medicinesCold, cough, headache, stomachAsk your doctor what to carry

Keep your phone and power bank warm inside your jacket. Batteries drain fast in the cold. Carry enough cash from Leh as there are no ATMs on the trek.

Is the Chadar trek safe?

The Chadar trek can be done safely with proper acclimatisation, an experienced local team, good gear and respect for the ice. The main risks are extreme cold, altitude sickness, slips on ice and changing river conditions.

What keeps you safer

  • Full acclimatisation days in Leh before the trek
  • A guide who knows the river and reads the ice
  • Good layers, dry socks and a warm sleeping bag
  • Small, steady steps and walking in a line
  • Drinking warm water often and eating well
  • Turning back when the guide says the ice is not safe

Main risks to respect

  • Frostbite and hypothermia in the cold
  • Altitude sickness if you rush
  • Falls on slippery ice or rocks
  • Thin or broken ice in warmer spells
  • No mobile network to call for help
  • Medical help is far away

Do not try the Chadar trek alone or without a local team. Follow your guide every time. Leave no trash on the river; carry everything back. The river is a lifeline for people who live in Zanskar.

How do you plan a Chadar trek with Discover Zanskar?

Tell us your preferred dates, group size and trekking experience. We send a plan with Leh stays, the trek team details and a clear quote. You book only when you are happy.

  1. Call or WhatsApp +91 78078 07373, or fill the form, with your dates and group size.
  2. We share a plan with Leh stay, acclimatisation days, trek days and what is included.
  3. We share the latest rules and checks we know of, so you can confirm them.
  4. You confirm and we share booking terms in writing.
  5. Before you fly, we send a packing list and simple winter tips.

Costs depend on the number of days, group size, Leh stay type, the trek team and gear needs. Read our Zanskar trip cost guide to understand what affects the price. For travel routes into the region, read how to reach Zanskar.

Frequently Asked Questions

What is the best month for the Chadar trek?

The Chadar trek usually runs in January and February, when the Zanskar river is frozen best. Many groups prefer mid January to mid February, but the ice is different every year. A warm spell can weaken the ice even in peak season. Keep your dates and flights flexible and check the latest update from the Leh administration before you book.

How many days does the Chadar trek take?

A Chadar trek plan usually takes about 8 to 10 days in total from Leh. This includes a few full days of rest and checks in Leh, around five to six days on the ice, and the drives to and from the start point. Add one spare day before your return flight in case of weather or road delays.

Can a beginner do the Chadar trek?

A fit beginner can sometimes do the Chadar trek, but it is better if you have done at least one high-altitude trek in summer first. The walking is mostly flat, but the cold is extreme and the days are long. Train for six to eight weeks, follow acclimatisation rules strictly, and always listen to your guide.

How cold does it get on the Chadar trek?

It gets very cold on the Chadar trek. Night temperatures can fall to around minus 20 degrees Celsius or even lower, and the day often stays below zero, especially in the shaded gorge. Wind makes it feel colder. You need several warm layers, a heavy down jacket, a warm sleeping bag and dry socks every night.

Is a medical certificate needed for the Chadar trek?

In recent seasons, trekkers have had to pass a medical check in Leh after a fixed acclimatisation stay before they could start the Chadar trek. Rules can change from year to year. Check the latest official update from the Leh district administration, carry your own health records, and get a check-up from your doctor at home before you travel.

Is the Chadar trek still happening because of the new road?

A road is being built along parts of the Zanskar river, and this has changed where the trek starts in recent years. The trek has continued in many seasons, often on a shorter stretch of ice. Conditions and rules can change, so check the latest status with official sources and your trek team before planning.

Where do you sleep on the Chadar trek?

On the Chadar trek you sleep in tents pitched on the river bank, and at some well-known spots trekkers have also used caves for shelter. The team sets up kitchen and toilet tents. Nights are very cold, so a sleeping bag rated for deep cold, a sleeping mat and dry clothes for the night are important.

Can I combine the Chadar trek with a Leh stay?

Yes. Every Chadar trek plan already starts and ends in Leh, and you spend several days there to acclimatise. You can add an extra day or two in Leh after the trek to rest and see nearby monasteries if roads are open. Tell us your dates and we will add these days to your plan.

Plan your trip with us

Call or WhatsApp +91 78078 07373 to plan your trip. Share your dates and group size and get a clear quote.