Ladakh — altitude sickness, acclimatisation and what to see in “Little Tibet”

Ladakh, often called “Little Tibet”, is a high-altitude desert on the far side of the Himalayas: Buddhist monasteries on rocky outcrops, turquoise lakes and roads over passes above 5,000 metres. It is also the only region in our programmes where altitude is a serious subject. Asking “will I cope?” is entirely reasonable — and it can be answered without scaremongering and without playing it down.

The short answer: is Ladakh for you?

If you are in generally good health with ordinary fitness, most likely yes — provided you gain height gradually, rest for your first two days in Leh and do not ignore symptoms. There is no climbing: the passes are crossed by car. But with heart or lung disease, sleep apnoea, during pregnancy, or if you have ever had severe altitude illness, the decision belongs with your doctor, not with a travel company.

Altitudes on the route

Altitudes rounded. Khardung La: the sign at the pass and the Leh district website give 5,602 m, but GPS surveys and SRTM satellite data put it at about 5,359 m — the figure used in the table. Pangong: the Leh administration gives 14,270 ft (about 4,350 m), other sources about 4,225–4,300 m.

Altitude sickness without the scare stories

At high altitude every breath carries less oxygen, and the body needs several days to adjust. Acute mountain sickness (AMS) can appear above about 2,500 m, especially after a fast ascent. Good fitness does not protect against it — while hard exertion at altitude raises the risk, however fit you are.

Symptoms and when to act

• Acute mountain sickness (AMS) — headache, loss of appetite, nausea, dizziness, tiredness, poor sleep. The NHS advises treating any new symptoms at altitude as altitude sickness until proven otherwise.
• High-altitude cerebral oedema (HACE) — a progression of AMS: confusion, unsteady walking and loss of coordination, extreme fatigue, drowsiness, changes in behaviour. A medical emergency.
• High-altitude pulmonary oedema (HAPE) — breathlessness out of proportion to effort, later also at rest, a dry cough, reduced exercise capacity. It can occur even without prior AMS symptoms. Also a medical emergency.

What to do? With mild symptoms — go no higher, rest, drink, take it easy. The NHS advises not going any higher for 24–48 hours and, if there is no improvement after 24 hours, descending by at least 500 m. With signs of HACE or HAPE, or if symptoms get worse — go down immediately and get medical help; Wilderness Medical Society guidelines for HAPE call for descending at least 1,000 m or until symptoms resolve. Leh has SNM Hospital, the region’s main medical centre. The most important rule: tell your tour leader straight away — don’t “wait and see”.

Acclimatisation: the first 48 hours in Leh

The Leh administration advises visitors to take at least 48 hours of rest after arrival before travelling higher — the guidance was introduced mainly with air arrivals in mind, but it makes sense for everyone. In practice:

• Day one — rest, no sightseeing, no exertion. Light meals, plenty to drink.
• Day two — short, easy walks or sightseeing without effort.
• No alcohol or smoking for the first two days; be careful with sleeping pills — ask your doctor about them before you go.

After that, the CDC guidance applies: above 3,000 m, do not raise your sleeping altitude by more than 500 m a day, and add an extra day for every further 1,000 m. What counts is the altitude you sleep at, not the one you reach during the day — which is why a short stop on a pass is not the same as a night at that height. And one rule with no exceptions: with symptoms, you do not go higher.

Who should talk to a doctor before going

According to the CDC, people with the following conditions should consult a doctor familiar with high-altitude medicine, even if the condition is well controlled:

• coronary artery disease,
• chronic lung disease or low blood-oxygen levels,
• obstructive sleep apnoea,
• sickle cell disease or sickle cell trait.

The CDC also places anyone who has previously had HAPE or HACE in the highest-risk group. A conversation with your doctor is also worthwhile with other heart conditions, poorly controlled blood pressure, during pregnancy and with any serious long-term illness. Your doctor may also consider preventive medication — a medical decision made individually, so we give no drug names or doses here. While you are there, cover your wider health preparation for India: vaccinations and a medical kit. Your travel insurance should cover medical treatment and evacuation at high altitude — check the policy wording.

Why arriving by road from Kashmir helps

You can fly to Leh — but then you land straight at over 3,000 metres and all of your acclimatisation happens there. Our Kashmir and Ladakh trip enters Ladakh by road from Srinagar, so the altitude you sleep at rises gradually:

1. Days 4–8 — Srinagar (approx. 1,590 m), with trips to Gulmarg and Pahalgam.
2. Day 9 — Sonamarg, over the Zoji La and overnight in Kargil (approx. 2,680 m).
3. Day 10 — drive to Leh (approx. 3,500 m), rest to acclimatise.
4. Day 11 — gentle sightseeing around Leh by car: the confluence of the Zanskar and the Indus, Spituk monastery.
5. Day 12 — Thiksey monastery, the Chang La pass and a night by Pangong Lake (approx. 4,300 m).
6. Day 13 — along the Shyok valley to the Nubra Valley, overnight lower down (approx. 3,150 m).
7. Day 14 — Diskit monastery and back to Leh over the Khardung La.

To be honest: the night at Pangong is a jump of about 800 m above Leh — more than the recommended 500 m. That is why the two earlier nights in Leh matter so much, along with the rule that anyone with symptoms does not go higher: the day’s plan changes for that person, not their health for the plan. The second day in Leh is a drive, not complete rest — if you feel unwell, stay at the hotel.

What to see in Ladakh

• Leh — the regional capital, with a palace above the old town and the Shanti Stupa on a hill.
• Thiksey — a monastery stacked up a rocky hill, often compared to the Potala Palace in Lhasa, with a 15-metre statue of the Maitreya Buddha.
• Hemis — Ladakh’s largest monastery, about 45 km from Leh. In June or July (by the Tibetan calendar) it hosts a festival of masked cham dances. It is not part of the trip’s itinerary.
• Nubra Valley — sand dunes and double-humped camels among high mountains, and Diskit monastery with its giant Maitreya Buddha statue (about 32 m), consecrated by the Dalai Lama in 2010.
• Pangong Lake — a brackish lake about 134 km long, roughly one third of it in India and the rest in China.

The Kashmir stage — Srinagar, Dal Lake, Gulmarg and Pahalgam — is covered separately in Kashmir: is it safe and when to go. If Ladakh’s altitude puts you off, Kashmir alone is our Golden Valley trip, and the Himalayas can also be seen from lower valleys in Nepal — combining it with India is covered in Nepal and India in one trip.

When to go and what to pack

The Ladakh season is summer and early autumn. The Himalayas block the monsoon clouds, so Ladakh is a high-altitude desert with very little rain — while the Indian plains are drenched, here the sun usually shines. The road from Srinagar over the Zoji La has traditionally been closed by snow in winter; in recent years the road crews have kept it open for longer, but a trip in late autumn or winter is not worth planning. Our departures are in July and September. Seasons across the whole country are compared in the best time to visit India.

• Layers. Days in Leh can be warm, but by Pangong and on the passes it is cold and windy. A fleece, a down or warm jacket, a hat, gloves.
• Sun and dry air. Sunglasses, high-factor sunscreen, lip balm, a hat and a water bottle.
• Regular medication in your hand luggage, with a few days’ spare.

The full list: what to pack for India.

Sources

• CDC Yellow Book — High-Altitude Travel and Altitude Illness: AMS, HACE and HAPE symptoms, the 500 m-a-day rule above 3,000 m, conditions needing a consultation
• NHS — Altitude sickness: symptoms from about 2,500 m, 24–48 hours without going higher, descending 500 m
• NaTHNaC / TravelHealthPro — Altitude illness: do not go higher with symptoms
• Wilderness Medical Society — clinical practice guidelines for acute altitude illness (2024 update)
• Merck Manual — Acute Altitude Illness: fitness is not protective, exertion raises risk
• Leh district administration — 48 hours of acclimatisation for visitors
• Ladakh Tourism — Travel Advisory: rest, no alcohol, smoking or sedatives
• All India Radio — SNM Hospital, Leh
• Leh administration — Khardung La (official figure: 5,602 m)
• Wikipedia — Khardung La: GPS and SRTM measurements, about 5,359 m
• Leh administration — Pangong Lake: altitude, length, India–China split
• Wikipedia — Leh: altitude about 3,500 m, climate
• Wikipedia — Zoji La: pass altitude
• Wikipedia — Chang La: pass altitude
• Wikipedia — Kargil: altitude
• Wikipedia — Sonamarg: altitude
• Wikipedia — Srinagar: altitude
• Incredible India — the Maitreya Buddha statue at Diskit (32 m, 2010)
• Leh administration — Thiksey monastery
• Wikipedia — Thiksey: resemblance to the Potala, Maitreya statue (15 m)
• Leh administration — Nubra Valley, Diskit, double-humped camels
• Incredible India — the Hemis festival
• Wikipedia — Ladakh: a high-altitude desert in the Himalayan rain shadow
• Greater Kashmir — Zoji La kept open longer in winter 2025/26

Frequently asked questions