1 Day Pabongka Sera Trekking Tour Overview This 1 Day Pabongka Sera Trekking Tour starts from the Pabongka Monastery and ends at Sera Monastery. The trail connects the two place through other small monasteries, nunneries and heritages along the way. It is a short hiking tour in Lhasa, but the views are just amazing. If you have one more day in Lhasa, consider to add it into your schedule. 1