This lovely kora climbs up to around 3900m and so probably should not be attempted until you’ve had a couple of days to acclimatise in Lhasa. The path passes several rock paintings, climbs past a high wall used to hang a giant thangka during the Shötun festival, peaks at a valley of prayer flags, and then descends to the east via an encased Drölma (Tara) statue and several more rock carvings. There are excellent views along the way.
The walk takes about an hour at a leisurely pace (it is possible to do it more quickly at hiking speed). Look for the path that continues uphill from the turn-off to the Ganden Podrang palace.