Bhutan's mountainous terrain offers a fascinating adventure for Mountain biking enthusiasts. The route along Bhutan's west-east highway (approx. 600 km) is an exciting route with challenges of surmounting a new pass over 3000 meters everyday. The highways winding up and down with drops of thousand of feet keep one too high on adrenaline to feel the slightest pinch of monotony. As you progress along the route, there is a discernible change in the flora and temperature, when you gradually descends from the alpine heights into the temperate regions of Punakha, Wangdiphodrang, Mongar, Tashigang and Samdrup Jongkhar. All along the routes the interruption by picturesque and almost medieval villages and towns rich in cultural spots make a welcome diversion.