The Rewalsar Lake, a pilgrimage centre for Hindus, Buddhists and Sikhs, is high up in the hills 24 km south-east of Mandi. There is a mountain cave-refuge near here. The small lake is revered by Tibetan Buddhists and every year, shortly after the New Year, many make a pilgrimage here, especially those from Dharamsala.

The festival, known as Tso-Oema, is particularly important in the Year of the Monkey, which falls every 12 years. At this time there are literally thousands of people here, and the dalai Lama gives puja in the monastery, and then does a circuit around the lake. It's very colourful event, and will next be held in 2004.