the ninth day of the ninth lunar month
the chong yang festival is celebrated on the ninth day of the ninth lunar month, and it is as such known as the double ninth festival.
climbing mountains: on the double ninth festival, people customarily climb mountains, appreciate chrysanthemum flowers, drink chrysanthemum wine, and eat double-ninth cakes. the double ninth festival is also the old men festival. old people are especially meant to improve their health by taking part in the activities on the day of the festival.