The Double Ninth Festival, also known as Chongyang Festival, is a traditional Chinese festival that falls on the ninth day of the ninth lunar month. It is a time for family gatherings, paying respect to the elderly, and climbing mountains.
In English, you could say "The Double Ninth Festival" or "Chongyang Festival." If you want to describe it as a traditional Chinese festival, you could say "The Double Ninth Festival is a traditional Chinese festival celebrated on the ninth day of the ninth lunar month."
If you want to talk about the activities people do during the festival, you could say "During the Double Ninth Festival, it's common to climb mountains, visit and pay respect to the elderly, and have family gatherings."
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