At night you'll see the Sangchen Choekor Shedra spotlit up high on the top of a hill on the north side of the valley. The shedra (Buddhist college) dates from 1765 and is home to about 200 monks who study here for six years. It's worth a visit mainly for the fine views from the switchbacking drive up. Look for the stuffed bear in the main entryway. The overnight Bumdrak Trek starts from here.
On the way back down, pop into the small and charming Kuenga Choeling Goemba, built by the family of the Queen Mother. A magnifying glass in a glass cabinet here reveals a tiny carving of Chenresig set in the forehead of another Chenresig statue. The upper floor has a finely carved altar and some superb murals depicting, among others, Tibetan King Songtsen Gampo. Monks can show you the 30-minute walking path down to nearby Tsendo Girkha Goemba.