Sissu is a popular village and a famous tourist destination located at Keylong in Himachal Pradesh. Positioned at an altitude of 3100 m above sea level, Sissu is located on the banks of Chandra river and has thick plantation of willows and poplars on either sides of the road. It is so dense and thick that even sunlight cannot enter.
Along with vegetation of potato, peas, buck wheat and barley, wild roses in white, yellow and red can also be seen here. The Gyephang Peak is situated just behind the village. This peak was named after Lord Gyephang, who is regarded as the deity of Lahaul.
A little away from the village, flows the Sissu Nullah from the glaciers of the Gyephang Peak. Another popular attraction of the place, are the two ancient fountain slabs, which date back to the 11th or 12th AD. Moreover, a PWD rest house is also there for the convenience of the tourists.