Samtengang winter trek is a journey from Punakha to Wangdi Phodrang Dzongkhag.The altitude ranges between 1100-1900m and climate is warm throughout the hike. The path is throughout the forests of rhododendron and oak through the villages of Sha and Chungsakha and across the longest bridge in Bhutan. The best time for this trekking is between March-April and September-October. The trip is about 54km in length with the maximum elevation of 1830m.