The lobster festival falls on July 7th of the Gregorian calendar. From this date, there are two Arabic numerals "7" shaped like two crayfish, and the homonym of "7" means "eat", so the lobster festival is an alternative festival for foodies, and this day is designated as "lobster festival". After entering 2000, eating crayfish became popular all over the country. Many cities across the country have also held various lobster festivals.