Running south from the Spiti Valley, the wind-scoured Pin Valley National Park (1875 sq km) is famous as the ‘land of ibex and snow leopards’, though sightings of either species are rare. From July to October, a popular eight-day trek runs from here over the 5319m Pin-Parvati Pass to the Parvati Valley near Kullu.
The road to the Pin Valley branches off the Kaza–Tabo highway about 10km before Sichling, climbing through winter meadows to the cluster of whitewashed farmhouses at Gulling. About 2km above Gulling at Kungri, the 600-year-old Ugyen Sanag Choling Gompa has old prayer rooms and a huge new monastery with vivid murals of protector deities, including the many-eyed archer Rahula and one-eyed Ekajati, the Guardian of Mantras. There’s also a small museum (Rs 25; 10am-6pm) with ethnological and religious displays. Southwest of Gulling, Sagnam marks the turn-off to the village of Mud, trailhead for the trek over the Pin-Parvati Pass. The wind moans between the whitewashed houses and there are some uplifting short walks around the valley.