It's height is 4,310 m (14,140 ft.) and is 54 Km from Gangtok & travel time around 2.5 hours from Gangtok
Nathu La is one of the three open trading border posts between China and India
Nathu La is located on the 563 km (350 mi) Old Silk Route, an offshoot of the historic Silk Road. The Old Silk Route connects Lhasa in Tibet to the plains of Bengal to the south
In 1975, Sikkim acceded to India and Nathu La became part of Indian territory.
Oh! It was a pleasure visiting Gangtok. I felt like being in different world like in China. It is exactly on border between India, China, Nepal and Bhutan.
I've found here plenty and plenty of woman working here. Looks like gender inequality is very less here. While my visit from Bagdora airport to Gangtok I saw that most vegetable vendors were women.
Oh I've visited Fun Valley which is at equal distance from Dehradun(30 Km), Haridwar and Rishikesh and is really nice place to enjoy in water.
Good thing is that even during summers the water is cold and clean enough to enjoy.
Timings
Open throughout the year. It's open time is 9 am to 5.30 pm in summer and 9 am to 4-5 pm in Winters. During winter water park will not be available. But other Coaster, Go karting etc will be.
The Asan Barrage is a barrage in the Uttarakhand-Himachal Pradesh border region in Doon Valley, (Dehradun District), northern India, situated at the confluence of the Eastern Yamuna Canal and the Asan River and about 11 km (7 mi) from Dakpathar, and 28 km. northwest of Dehradun.
We had the opportunity to visit Asan Barrage in March, 2014, which falls in the Chakrata Road but before we reach Ponta Sahib while going from Dehradun. It is around 45 km from Dehradun. The road is good enough.