This is one of the best and finest treks. It is counted in a strenuous category of treks and trekkers who intend to undergo this trek are expected to ensure a very good state of physical fitness. It is 14-days trek and an extension of Jumolhari Trek, offers diverse flora and fauna, including a good opportunity to spot Blue Sheep, Takins and the Blue Poppy (Bhutan’s national flower). It introduces you to the unusual culture of the Layap people and offers a stop at a natural hot spring in Gasa. It is a popular Trek. Highest point is 4890 Meter.