Is Tomb-Sweeping Day a traditional festival?

Tomb-Sweeping Day is a traditional festival in China.

Tomb-Sweeping Day, also known as outing festival, outing festival, March festival, ancestor worship festival, etc. It was celebrated at the turn of mid-spring and late spring. Tomb-Sweeping Day, which originated from the ancestor belief of early human beings, is the biggest ancestor worship festival of the Chinese nation. Tomb-Sweeping Day has two connotations of nature and humanity, which are both natural solar terms and traditional festivals. Grave-sweeping and hiking are two major themes of Tomb-Sweeping Day's customs and habits, which have been circulating in China since ancient times and have never stopped.