I want to know the answer to the following question:
When was the festival of climbing on the city wall celebrated?
All the background I'm provided with is that "Many traditional festivals and customs were observed in the old times, which included climbing the City Wall on January 16, bathing in Qing Xi on March 3, hill hiking on September 9 and others (the dates are in Chinese lunar calendar).". Is that enough to answer the question?
Answer: yes