Walking the Kora — one of the circuits around a monastery — is a traditional way for Tibetan Buddhists to worship, and you will see pilgrims making circuit after circuit of major monastery buildings wherever you are in Tibet.
The Ganden High Kora is a longer walk around the monastery area, climbing above the monastery to the Wangpori ridgeline, while the lower kora circles the complex and leads to Tsongkhapa's meditation cave.
Walking the kora takes about one and a half to two hours, and on a clear day there are stunning views of the peak of Nyenchen Thangla and the Kyi-Chu valley below.