This trek is the old expedition route to Gangkar Phuensum and, with special permission; it might be possible to extend the trek to the base of the mountain itself, though this is rough, difficult route. The route is through a forest of Cyprus, juniper, spruce, hemlock and maple. Along this part of the trail between Tsochrnchen to Duer Tsa chhu, it may be possible to see musk deer, Himalayan bear, and herds of blue sheep. The main highlight of this trek is the Hot Spring (known for healing properties).

Day 01   Arrive Paro by Druk-Air/hotel (L, D)
Day 02   Paro Sightseeing/hotel (B, L, D)
Day 03   Paro Thimphu (B, L, D)
Day 04   Thimphu Sightseeing (B, L, D)
Day 05   Drive to Bumthang (B, L, D)
Day 06   Bumthang at Leisure (B, L, D)
Day 07   Trek day 1/Bumtha to Gorsum (B, L, D)
Day 08   Trek to Lungsum (B, L, D)
Day 09   Trek to Tsochenchen (B, L, D)
Day 10   Trek to Dur Tsachu (B, L, D)
Day 11   Day at leisure (B, L, D)
Day 12   Trek to Tsochenchen (B, L, D)
Day 13   Trek to Gorsum (B, L, D)
Day 14   Trek to Bumthang/trek end (B, L, D)
Day 15   Bumthang to Punakha/ Hotel (B, L, D)
Day 16   Drive to Thimphu/hotel (B, L, D)
Day 17   Drive to Paro/hotel (B, L, D)
Day 18 Departures (B)