Kanchenjunga

Kanchenjunga, in Taplejung District in the far north-east corner of Nepal, is the third-highest mountain in the world at 8,586 m and the centre of one of the least visited trekking regions in the country. The Kanchenjunga Conservation Area covers about 2,035 km2 along the border with Sikkim and Tibet, and its classic trek follows the Ghunsa Khola to Pangpema, the north base camp at about 5,140 m, then crosses three high passes to reach Ramche and the Yalung glacier on the south side. The area is restricted: you need a Restricted Area Permit through a registered agency, the conservation area permit and a licensed guide. Plan 21 to 27 days for the full circuit, or about 16 days for the north base camp alone, with a flight to Bhadrapur and two long road days at each end. Spring and autumn are the best seasons.

Overview of Kanchenjunga

Kangchenjunga (also spelled Kanchenjunga) was thought to be the highest mountain on Earth until 1852. Measurements by the Great Trigonometrical Survey showed that Everest was higher, and in 1856 Kangchenjunga was officially ranked third. Its name is usually explained as "the five treasures of the high snow" in Tibetan. It was first climbed on 25 May 1955 by Joe Brown and George Band of a British expedition, who stopped just below the true summit to honour a promise to the ruler of Sikkim that the top would stay untouched.

The massif has five summits. The west and Kangbachen peaks lie inside Nepal, while the main, central and south summits sit on the border. Four big glaciers radiate from it: the Yalung glacier to the south-west, which you see from Ramche, and the Kangchenjunga (Lhonak) glacier to the north-west, above Pangpema. Other peaks in view include Jannu (Kumbhakarna, 7,711 m), Kabru, Talung and Nepal Peak.

The valleys are home to Limbu people of the Kirat tradition in the lower villages and Sherpa and other Tibetan-speaking Buddhist communities at Ghunsa and above. Cardamom, millet and rice terraces fill the lower valleys, and yak herders use the high pastures in summer.

Best time to trek, month by month

• March: cold at altitude, with snow on the high passes. Rhododendron starts to bloom in the lower forests. The high passes of the circuit are often still snowbound, so March suits the north base camp better than the full circuit.
• April: the spring peak. Rhododendron and magnolia bloom up the valley, skies are mostly clear in the morning and the passes are usually open by the end of the month.
• May: warmer, with afternoon cloud and haze. Pre-monsoon storms are possible, and views can be weaker than in autumn.
• June to August: monsoon. Very heavy rain, leeches below 3,000 m, landslides on the Taplejung road and cloud on the mountain. Not recommended.
• September: the rains fade, but trails are wet, leeches linger and landslides remain possible early in the month.
• October: the most reliable month, with clear air, stable weather and the harvest in the villages. The passes are open and lodges are staffed.
• November: colder and very clear. Ghunsa and Kambachen get hard frosts, and lodges higher up start to close at the end of the month.
• December to February: deep cold and snow on the high passes. The upper villages are largely empty, so this is only for experienced winter trekkers with camping support.

Routes compared

Many agencies sell the north base camp alone as a 16 to 18 day out-and-back trek from Sekathum to Pangpema and back, and the south base camp alone as a 14 to 16 day trek from Yamphudin to Ramche. The circuit joins them over the Sele La, Mirgin La and Sinelapche La, and the passes can hold snow in spring and late autumn.

Permits and rules

Kanchenjunga is a restricted area. The Department of Immigration issues a Restricted Area Permit, applied for through a registered trekking agency, and you also need a Kanchenjunga Conservation Area entry permit. A TIMS card may be requested where the local office asks for it. Fees and the number of days charged have changed more than once, and trekking blogs disagree, so ask the agency for the current amounts and check them against the Department of Immigration and the conservation area office.

Guides and solo travel. A restricted-area trek needs a licensed guide. Since 22 March 2026 one trekker can apply, so a group of two is no longer needed, and a partner halves the guide cost. The permit must still go through a registered agency and the guide stays compulsory. I could not confirm the official text, so check before you book. Carry your passport and several permit copies for the check posts at Sekathum, Ghunsa and Lhonak.

Getting there: flight and road

The usual route is a flight from Kathmandu to Bhadrapur in the Terai (about an hour), then a long drive north through Ilam or Phidim to Taplejung, also called Phungling, the district headquarters at about 1,800 m. Allow 9 to 10 hours with stops. From Taplejung, a jeep runs to Sekathum (Sukethum), where the north trail begins, in about 4 to 5 hours on a rough road. Some travellers instead take a night bus from Kathmandu to Taplejung, which takes around 20 hours.

For the south side, jeeps run to Yamphudin when the road is dry. At the end of the circuit you can ride a jeep from Yamphudin back to Taplejung, or walk. Flights to Bhadrapur are often delayed by cloud, so keep one buffer day at each end.

Altitude and acclimatisation

The circuit sleeps above 4,000 m at Kambachen, Lhonak, Selele and Ramche, and Pangpema is above 5,000 m. The north side gains height in steady steps, with rest days at Ghunsa (3,440 m) and an easy day at Kambachen. Lhonak (4,770 m) to Pangpema (5,140 m) is only a 370 m gain, but it is a long day of about 15 km there and back, so many guides plan it as a day trip from Lhonak. After Pangpema you descend to Ghunsa before the passes.

The pass crossing between Selele and Tseram is the hard day, with three saddles between about 4,640 and 4,710 m and a long descent. Know the symptoms of acute mountain sickness, never ascend with symptoms, and descend if they worsen. Diamox is a personal medical decision and should be discussed with a doctor.

Lodges, costs and food

Lodges exist at Sekathum, Amjilosa, Gyabla, Ghunsa and Kambachen, with simple rooms and dal bhat, noodles and eggs. Lhonak, Selele, Tseram and Ramche have small seasonal lodges or camps; the facilities are basic and menus are short. Many agencies carry tents and a cook for the passes, and in the shoulder seasons you should not count on a bed at every stop.

Prices rise with altitude because everything is carried in by porters and yaks. Budget for hot water, charging and bottled water separately. Bring snacks, because the lodge menus are limited, and keep a reserve of cash in rupees: there are no machines beyond Taplejung.

Connectivity

Mobile data is patchy and absent for several days. Ntc and Ncell signals appear in Taplejung, Sekathum and sometimes Ghunsa, but not above Kambachen. A few lodges sell Wi-Fi or satellite time at a high price. Tell family you will be offline for several days, and carry a satellite messenger if you want emergency cover.

Safety

The region is remote, and the nearest hospital is in Taplejung. Evacuation by helicopter is possible from Ghunsa and Lhonak in good weather, but only with insurance that covers helicopter rescue and a guide who can call. Rivers can be crossed on narrow suspension bridges, and landslides cut the trail in the monsoon. There are few other trekkers, so a fall or illness can wait hours for help. Do not trek alone even where the rule allows it.

Cold is the main hazard in the upper valley. Dress for minus 15 C at Lhonak and Ramche in autumn and spring, and carry a down jacket and a four-season sleeping bag.

What to pack

Boots that are broken in, a down jacket, a sleeping bag rated to about minus 15 C, waterproof layers, gloves and a warm hat, sunglasses with side protection, trekking poles, gaiters for snow on the passes, a headlamp, a water filter or tablets and a first-aid kit with blister care. Microspikes are useful on the Sele La section in early or late season. Leave surplus gear at your Kathmandu hotel.

History and culture

The Limbu, or Yakthung, are one of the Kirat peoples of eastern Nepal and have inhabited this region for centuries. The Pathibhara Devi temple above Taplejung is a pilgrimage site for Hindus and Kirat followers. The Sherpa and Tibetan-speaking people of Ghunsa and Kambachen brought Buddhism, and the villages have gompas and mani walls. Ghunsa has a monastery, stone houses and mani walls, and its families move down the valley for the coldest months.

The mountain has drawn explorers for more than a century. Douglas Freshfield made a celebrated circuit of the massif in 1899, and the 1955 British expedition made the first ascent from the Yalung side.

Wildlife and nature

The Kanchenjunga Conservation Area has been recognised for its birds, and records include snow leopard, red panda, musk deer, Himalayan tahr, blue sheep and the blood pheasant. In 2012 camera traps recorded a leopard cat at 4,474 m, the highest record known. The valleys pass through subtropical forest, oak and rhododendron forest, fir and juniper before the open yak pastures. Cardamom is a cash crop in the lower slopes.

Responsible trekking

Pack out your rubbish, avoid plastic bottles by using a filter, and buy from local lodges. Ask before taking photographs of people and monasteries, walk clockwise around mani walls, and do not give sweets or money to children. Limit your use of firewood by choosing lodges that use kerosene or other fuel at the higher camps.

Combining treks

The circuit can be extended by the Yalung Ri side trip at Ramche, or by the Lumba Sumba and Jongsang La routes, which are technical and need expedition-style support. A day around the tea gardens of Ilam suits the road days either side of the flight to Bhadrapur. Other trekkers combine Kanchenjunga with a Makalu trek, which shares the same long drive logistics from the east.

Money, insurance and logistics

Bring all the cash you need from Kathmandu or Taplejung. Insurance must cover trekking up to 5,500 m and helicopter evacuation. Domestic flights to Bhadrapur are sold by several airlines, and baggage limits on small aircraft are strict, so pack soft bags. Porters carry about 20 to 25 kg each under many agency rules; check how many your group needs.

Arranging your trek

Choose a registered agency that handles the Restricted Area Permit and employs insured guides and porters. Ask who the guide is, how many days are built in for rest and weather, and what happens if a pass is closed by snow. Agree the route (north only, south only or the circuit) before you pay.

Kathmandu before and after

Spend at least one night in Kathmandu before the Bhadrapur flight to finish permits and gear shopping in Thamel. After the trek, a day in Kathmandu or Bhaktapur helps you recover. If you are flying out of Bhadrapur late, you may need a night in Biratnagar or Kathmandu.