The nation is celebrating Chuseok with more than half of the population visiting their homelands and ancestral graves during the three-day holiday.
In Seoul alone, more than 70-thousand people were estimated to have visited tombs of their ancestors on Tuesday, causing traffic snarl around cemeteries and major highways around the metropolitan area.
The Korea Highway Corporation said traffic would begin to slow down starting later Tuesday as people return to Seoul from their hometowns with traffic congestion reaching its peak on Wednesday.
Meanwhile, a wide range of traditional folk festivities took place across the capital city, including events where people were invited to make songpyun, half moon-shaped Korean rice cake.
Chusok usually falls on August 15 on the lunar calendar and demonstrates the importance of family to Korean society. Family members, usually from the paternal line, get together to prepare food, honor their ancestors, and cherish relatives, both living and deceased.