Kuoshi, the Lisu New Year

For more than two centuries Lisu families from up and down the canyon have gathered at the Denggeng hot springs 登埂澡塘 north of Liuku in the first days of the lunar year, bathing to wash away the old year's ills and camping by the river between soaks, with singing contests and food stalls.

How to join: Come by day from Liuku, where rooms are easier to find, and bring swimwear and a towel. The hidden Nujiang Canyon route passes the springs on Day 1.

Etiquette: Wear swimwear, keep to the public pools, and ask before photographing anyone in the water.

In Bingzhongluo 丙中洛, at the northern end of the Nu River canyon, the Nu people honor a legendary fairy linked to a cave above the valley with flowers and offerings, followed by singing, dancing and shared food. It is also called the Flower Festival.

How to join: Ask your Bingzhongluo guesthouse where the gathering is held that year; visitors who come quietly are usually welcome at the singing and dancing.

Etiquette: Stay back from the rituals unless invited, and bring fruit or flowers if you join a family.