The mud is taken from the Boryeong mud flats, and trucked to the Daecheon beach area, where it is used as the centrepiece of the 'Mud Experience Land'. The mud is considered rich in minerals and used to manufacture cosmetics. The festival was originally conceived as a marketing vehicle for Boryeong mud cosmetics.
Although the festival takes place over a period of around two weeks, it is most famous for its final weekend, which is popular with Korea's western population. The final weekend of the festival usually falls on the second weekend in July.
Photo credits: avaxnews.com and wikipedia.org