Chuseok, also known as Hangawi, is a major holiday in Korea that is observed on the 15th day of the 8th lunar month.
The celebration lasts for three days.
It is a harvest festival similar to the Chinese Mid-Autumn Festival celebrated on the same day.
Chuseok is an important public holiday in South Korea.
During the festival, people visit their hometowns to pay respect to their ancestors.
They visit their ancestors' graves, clean them, and perform special memorial rites.
All three days of Chuseok are official non-working days, so Koreans can take their time to travel.
During Chuseok, families gather for celebratory meals which include traditional foods.