Though rafting in Bhutan is in its infancy, those who have scouted the rivers feel that it has the potential for some of the best rafting on earth. From small alpine runs like the Paro Chhu to the big water Puna Tsang Chhu, the white water of Bhutan is as diverse as its topography. Since 1997 small groups of paddlers have been exploring 14 rivers and over 22 different runs that vary from class II (beginner with moderate rapids) to class V.

There are two superb day trips on the Pho Chhu and the Mo Chhu. The trip on the Pho Chhu combines a hike up the side of the river through forest and farmland to the put-in at Samdinka. The raft trip has a couple of class III rapids and ends in a bang with the 'Wrathful Buddha' rapid next to the Punakha Dzong.

The second trip, a very easy scenic float on the Mo Chhu, is suitable for all abilities and is a good introduction for the novice. The run starts about 6km above the Punakha Dzong at the Khamsum Yuelley Namgyal Chorien. As the river meanders through the wide valley you float past one of the queen's winter residences, the king's weekend retreat and some beautiful farm­land before taking out just below the dzong.