Tranquil and scenic is what Thangu Valley is all about. Due to its high altitude located of around 3962 m, it is covered in the blanket of snow almost all the time. The valley comprises alpine meadows that are flanked by shimmering water of River Teesta and wooden houses, offering a picturesque sight to witness. Apart from Teesta River, three more rivers, Chopta, Thangu and Lassur also flow through this valley. There is also a small village of the same name in the valley, which is used as a halt by tourists heading to the beautiful and popular attraction of Sikkim, Gurudongmar Lake.
Thangu Valley is located 30 kilometers north of Lachen and you can get taxis to reach this beautiful valley.
While at Thangu Valley, apart from appreciating the scenic beauty of the place you can also gear up for short treks. Thangu has some point swhere trekkers can hike up to. One can trek to places like Chopta Valley, Green Lake or Muguthang from Thangu.
The best time to visit Thangu Valley is from March to June.