The Great Himalayan Range is home to some of the most scenic, but difficult trekking routes. Below is a list of some of the most tough trekking routes 

1)Chadar trek:
Located at an altitude of 11,400 feet, the beautiful trail over the frozen Zanskar river, which is a tributary of the mighty Indus river, in Ladakh is the most awaited treks in the months of January and February.  The temperature of the region encompassed by Zanskar River dips down to -30 degree resulting into the stream getting frozen. This frozen river creates a trail that offers an exhilarating trekking opportunity for adventure junkies.

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2)Gocehla trek:
This trek starts from Yuksom in Sikkim and lets you witness the most beautiful and unexplored part of the Himalayas. The rough terrains take you through the dense rhododendron forests allowing you to witness the spellbinding beauty of Mt Kanchenjunga, the third highest peak in the world, from the closest. A major highlight of the trek is the beautiful Samiti Lake located on the bottom of Onglakthang valley. This 11-day-long trek is best suited for the months of April, May, September and October.

3) Auden’s Col Trek, Uttarakhand

Located at an elevation of 5,450 meters, Auden’s Col Peak joins the Gangotri III and Jogin I peaks on one side. This trekking trail in Garhwal takes one to the considerably shallow crevasses. High level of expertise in trekking is a must for carrying out this trek. The route begins from Gangotri and leads through the lush birch and pine forests. 

4)Parvati valley:
Parvati valley is known to be the most adventurous and picturesque trekking destinations in Himachal Pradesh. The 110 km-long trail takes you through the dense forests of the Great Himalayan National Park, Kheerganga, Mantalai and Pin Parvati Pass, which is the most challenging part of the trek, especially during monsoon.  The 11-day trek starts from Bursheni and the best time to visit ranges from July to September.

5)Kalindi Khal Trek”

This trek is also known as the Big Daddy of treks in Garhwal Himalaya, Uttarakhand. It incorporates an uneven route traversing over glaciers and snowfields. The trail covers the stretch from Bhagirathi Valley to Alaknanda Valley. Trekking on this strenuous trail commences from Gangotri and terminates at Badrinath. The intriguing places that can be explored en route are Gomukh, Vasuki Tal, Nandanvan and Kalindi Khal. In addition to this, several imposing peaks like Vasuki, Bhagirathi, Satopanth, etc., can also be witnessed on the way.