The Chadar trek is a long trek that is quite hard, mostly because of the incredibly low temperatures, and the skill required to trek on the frozen Zanskar river. In the summer, this raging river offers ferocious rapids for those looking for whitewater rafting. But in winter, the river freezes over, and when the roads are covered in snow, the river is the only access route for locals. You’ll trek between the soaring walls of the river valley, carefully negotiating your way over the ice and looking at the bubbles that are frozen underneath. You’ll see waterfalls that have frozen over in mid-fall, and drink hot tea in ancient caves with walls darkened by thousands of campfires. This long Himalayan trek gives you a once-in-a-lifetime experience of Ladakh trekking, and is one of the most difficult treks in India. This long Himalayan trek can be done over 5-15 days.
The Stok Kangri trek is a difficult and long Himalayan trek in India, thanks to the high altitude it starts at. The trek starts in the stunning town of Leh, and involves some rock-climbing as you get closer to the peak. The early section of the trek takes you through beautiful mountain scenery, and you'll camp at gorgeous campsites. From base camp the climb becomes steep and the air thins, posing a thrilling challenge for trekkers. While it involves some rock-climbing, you don’t need to have any technical mountaineering skills to get to this altitude, which makes it one of the more accessible long treks in India. This long Himalayan trek can be done over 10-12 days.
The Pin Parvati Pass trek is a long trek in India, and is meant only for those with experience. Located at a height of 17,450 feet, the Pin Parvati Pass is the only link between the green Parvati Valley of Kullu and the dry, arid Pin Valley in Spiti. On this long Himalayan trek, you will start from Manali, and trek through the green valleys of Himachal Pradesh, through fruit orchards, blossoming wildflowers, and sparkling rivers and streams. Once you reach Pin Parvati Pass, you'll see the brown and grey rocky landscape of the Spiti valley. For almost 10 days, you’ll be far away from civilization, crossing wide glaciers, climbing steep slopes, and trekking through thick forests. This makes the Pin Parvati Pass trek one of the harder long treks in India. This long Himalayan trek can be done over 10-12 days.
Roopkund is a glacial lake nestled in the Garhwal Himalayas. Situated at an altitude of 16,500 feet, the lake is completely uninhabited, desolate and is surrounded by snow clad mountains. It’s a long trek in India, but it offers you a rare chance to see the ancient remains of human skeletons that surround it. On this adventure, you will trek through verdant green meadows, climbing to more barren heights as you get closer to giant Himalayan peaks, and there’s usually a good chance of snow at the lake itself. The best season to visit is in summer from May to June and then September to October. This long Himalayan trek can be done over 6-9 days.
The Goechala trek is undoubtedly one of the most difficult long treks in India. There are a couple of days when the trekking can get quite steep, especially when the weather is harsh and merciless. You’ll climb from about 5,800 feet to a dizzying 16,000 feet over 10 days, into remote and stark landscapes. You’ll trek through forests of ancient oak and rhodendron trees, across alpine meadows with great open views, and to the hill station of Darjeeling. As you near the Goechala Pass, you’ll have to navigate vast glacial moraines, and will have some fun on these challenging sections. This long Himalayan trek can be done over 10-12 days.
One of the lesser-known most difficult treks in India, the Rupin Pass trail involves a steep ascent to Rupin Pass at 15,380 feet. The trail offers a variety of terrain to trek on, and moves from Uttarakhand into Himachal Pradesh. You’ll pass quaint mountain villages, towering cliffs and dense forests, and walk along the banks of the icy blue Rupin river, through pine-scented forests, and across rock-hewn ridges. This long Himalayan trek is a blend of medium to easy gradients, with some steep climbs over ridges. This is one of the more difficult treks in India, and is recommended for trekkers with prior experience. The best time to visit is May to June and then from September to October. This long Himalayan trek can be done over 6-9 days.
The Kuari Pass trek is a long Himalayan trek and one of the few trekking destinations that is open in the winter. It’s also a popular end-of-the-year trek for those looking for a snowy challenge. This long trek is moderately easy, except for the summit to Pangarchulla peak, which stands tall at 15,419 feet and puts your climbing muscles to the test. One of the top treks in Uttarakhand, this long Himalayan trek takes you through endless green meadows, alpine forests, and past towering Himalayan peaks with enchanting panoramic views of Nanda Devi, the Chaukhamba Range, Mana peak, and Kamet peak. The best season to visit is in summer from April to June and then in September to November.