Leh, Ladakh: Where the Indian Himalayas Become Desert and the Rivers Freeze into Highways

Leh sits at 3,524 metres above sea level, which means the air holds roughly half the oxygen you are used to. Most people who fly in from Delhi spend their first night awake with a headache, wondering if they made a mistake. They did not. The headache passes. What remains is a landscape unlike anything else in the Indian Himalayas: a cold desert of wind-sculpted valleys, turquoise lakes that change colour by the hour, and monasteries that have been burning yak butter lamps since the 11th century.

This is not a place you visit casually. Ladakh is a Union Territory bordering China and Pakistan. Military checkpoints control access to the valleys beyond Leh. The roads are open only from late May to September. Winter temperatures drop to minus 30 degrees Celsius. And the altitude can kill you if you ignore it. But for those who prepare properly, Leh is one of the great adventure destinations in Asia.

Getting There

Kushok Bakula Rimpochhe Airport in Leh has direct flights from Delhi, Mumbai, Srinagar, and Jammu. The flight from Delhi takes about 75 minutes. The problem is the landing: you step off the plane at 3,524 metres, and your body has no time to adjust. This is why the acclimatisation rules exist.

The alternative is the road. The Leh-Manali Highway runs 490 kilometres through Rohtang La, Baralacha La, and Tanglang La, taking two days minimum. It opens around late May and closes by October. The Leh-Srinagar Highway is 434 kilometres through Zoji La and opens earlier, around April. Both are among the great Himalayan drives, but they are not easy. Landslides, snow, and altitude are constant factors. Most travellers break the journey with a night at Keylong or Sarchu on the Manali route, or at Kargil on the Srinagar route.

The Altitude Reality

Acute mountain sickness does not care how fit you are. It can hit anyone above 3,000 metres, and Leh is 500 metres above that threshold. The regulations changed in 2022: you must spend two full days in Leh before crossing Khardung La or Chang La. No exceptions. The military checkpoints enforce this.

The first 36 hours are critical. Do not plan any activity on arrival day. Drink water constantly. Avoid alcohol completely for the first 48 hours. Mild headache is normal. If you start vomiting, feel disoriented, or develop a severe headache, you need oxygen and descent. The Sonam Norbu Memorial Hospital in Leh has a hyperbaric chamber. Use it if necessary. People have died here because they pushed through the symptoms to get a photograph at Pangong Tso.

Treks

The Markha Valley Trek is the classic. Six to eight days from Spituk to Hemis, crossing the Kongmaru La at 5,150 metres. The route passes through villages where apricot trees grow in the Indus Valley, and you sleep in homestays run by families who have lived here for generations. The trek is moderate in difficulty but the altitude makes it serious. A guide is mandatory for most routes, and the trekking permits are checked at trailheads.

The Sham Valley Trek, sometimes called the Baby Trek, is three to four days through lower-altitude villages and old monasteries. It is the best option if you have no high-altitude experience. The route stays mostly between 3,000 and 4,000 metres.

Stok Kangri, at 6,153 metres, was the highest trekkable peak in the range. It closed from 2020 to 2025 because overtourism destroyed the glacier and damaged water sources for Stok village. It reopened in 2025 under strict new rules: Indian Mountaineering Foundation permits with daily quotas, certified guides compulsory, and designated camping zones only. Book months ahead. The climbing window is July to September.

The Chadar Trek is the most famous winter route. In January and February, the Zanskar River freezes into a natural ice highway. You walk through gorges at temperatures around minus 25 degrees Celsius, sleeping in caves at night. It is not a trek for beginners. The ice breaks in places. The cold is relentless. And the logistics require a professional operator with proper equipment. This is the trek that made Leh legendary.

Key Destinations

Nubra Valley lies 150 kilometres north of Leh via the Khardung La pass at 5,359 metres. The valley sits at 3,000 metres, which feels low after the pass. The landscape is absurd: sand dunes at Hunder, backed by snow-capped peaks, with double-humped Bactrian camels wandering around. The camels are a legacy of the Silk Route caravans that crossed here on the way to Kashgar. Diskit Monastery, founded in the 15th century, houses a 32-metre statue of Maitreya Buddha facing the Line of Actual Control with Pakistan. Turtuk, the northernmost village open to civilians, was opened to tourists only in 2010. It belongs to the Balti culture, distinct from Ladakhi Buddhism, with stone houses and apricot orchards. Turtuk requires a separate permit beyond the standard Nubra paperwork.

Pangong Tso is the lake that appears in every photograph. It stretches 134 kilometres across the border into Tibet, though you can only access the Indian side. The drive from Leh takes five to six hours via Chang La at 5,360 metres. The water changes colour through the day: deep blue in the morning, turquoise by noon, and violet at sunset. There are basic camps along the shore. Carry enough cash. There are no ATMs. The altitude is 4,250 metres, so you will feel it.

Tso Moriri is the quieter alternative. A high-altitude lake at 4,522 metres, surrounded by mountains and nomadic camps. The Korzok Monastery on its shore dates to the 19th century. The lake is a wetland of international importance, and the birdlife is significant. It is harder to reach than Pangong, which is why fewer people go. Foreign nationals need a permit, and the route is restricted.

Hanle, in the far southeast, is India's first Dark Sky Reserve. The observatory here sits at 4,500 metres, and the Milky Way is visible on any clear night. The road is rough, the accommodation is basic, and the permits are complicated. But the stargazing is the best in the country. This is for people who have already seen the main sites and want something harder to reach.

Monasteries

Hemis, 45 kilometres from Leh, is the largest and wealthiest monastery in Ladakh. The annual Hemis Festival in June or July draws thousands for the masked cham dances. The monastery museum holds Tibetan thangka paintings and relics. Thiksey Monastery, 19 kilometres from Leh, looks like a smaller version of Lhasa's Potala Palace. It has a 15-metre statue of Maitreya Buddha and morning prayer ceremonies at 6:00 AM that are open to visitors. Lamayuru, 127 kilometres west on the Srinagar road, sits in a landscape of moon-like eroded badlands. The monastery was founded in the 11th century and is one of the oldest in Ladakh. Alchi Monastery, 66 kilometres west, is different from the others. It sits in the valley rather than on a hilltop, and its 11th-century wall paintings predate the Tibetan style that dominates later Ladakhi monasteries. The artwork is Kashmiri-influenced and unique in the region.

What to Skip

The Magnetic Hill optical illusion on the Srinagar road is not worth a stop. It is a gravity trick that lasts 30 seconds and adds nothing to your trip. The overpriced camel rides at Hunder are tourist traps. The Bactrian camels are impressive, but the 10-minute rides around the dunes are expensive and meaningless. Do not buy so-called pashmina from street vendors in Leh Main Bazaar. Most of it is synthetic. Real Ladakhi pashmina is expensive and sold through certified cooperatives. The Pangong Tso day trip from Leh is a bad idea. It is 10 to 11 hours of driving for one hour at the lake, and the altitude hits you hard with no time to acclimatise. Stay at least one night. The fake "local experiences" arranged by some large tour operators are scripted performances. Find homestays through community-based networks like the Himalayan Homestay programme instead.

Practical Logistics

Permits are non-negotiable. Indian nationals need an Inner Line Permit for Nubra Valley, Pangong Tso, Tso Moriri, and Hanle. Foreign nationals need a Protected Area Permit, which must be arranged through a registered tour operator. The permits are checked at multiple military checkpoints, and the paperwork is inspected thoroughly. Carry photocopies.

Cash is essential. Leh has a few ATMs, but they run out of money regularly. Beyond Leh, there are no ATMs. Nubra, Pangong, and Tso Moriri are cash-only zones. Carry enough Indian rupees for your entire trip.

Connectivity is limited. Only postpaid SIM cards work in Ladakh, and only BSNL and Jio have reliable coverage. Data works in Leh and along the main Indus Valley highway. Beyond Diskit in Nubra, or after Tangtse on the Pangong road, coverage drops to zero. On trekking routes, there is no signal at all. Satellite communicators are recommended for remote treks.

The weather is extreme. Summer days in July reach 25 degrees Celsius, but nights drop below 5 degrees. A down jacket is necessary even in August. Sun protection is critical at this altitude: SPF 50 minimum, UV-blocking sunglasses, and lip balm. The UV is intense, and the air is dry. Dehydration happens faster than you expect.

Ladakh is a no-polythene zone. Plastic bags are banned. Carry a reusable bag and a water bottle. Refill from local sources rather than buying new bottles. The water in villages is generally safe if boiled. Leave no trace. The ecosystem is fragile, and the waste management infrastructure is basic. What you carry in, you must carry out. The military checkpoints sometimes inspect vehicles for plastic waste.

The best window is late June to early September. June can still have snow on the high passes. By late September, the cold returns and the tourist infrastructure starts shutting down. Winter, from November to February, is for the Chadar Trek only. Everything else is closed.

Leh is not a destination that forgives carelessness. The altitude, the cold, and the isolation demand respect. But for those who prepare, the reward is a landscape that feels like the edge of the world: silent, vast, and impossibly beautiful. Book the acclimatisation days. Carry the cash. Get the permits. And do not rush. The mountains will still be there tomorrow.