It is the first Himalayan National Park with rich flora and fauna. The national park is the most appropriate place for hiking too. It is the catchment area for Trisuli river along Sun Koshi river. Mostly the populations are Tamang who are from the ancient Nepalese race.
The national park is highly uncrowded which makes it the best national park for the occasion. The nearby lodges are operational during winters only. People may have high altitude sickness so you should carry your medicines accordingly.
Highlights: There are three main trekking routes in this place Langtang Valley, Helambu and Gosaikunda Lake.
Best time to visit: Mid October to Mid December.
Prices: Rs. 1000 entry fee.
Location: Nearest city is Kathamandu.