the annual boryeong mud festival opened on july 17th. it runs through sunday. this year there are various mud-based events and attractions including a large bath and a sliding pool. >> fun. we're having a wonderful time. >> whoo! >> we're definitely enjoying the mud here. mud fest. >> reporter: the mud feels good. >> it's my second time going to the boryeong festival because i had so much fun last year. >> you can try for yourself. this is really fun. >> reporter: although boryeong has long been known for its scenic landscape, the city had no major industries. officials then hit on the idea of taking advantage of 800 tons of a mineral-rich mud produced each year near the beach. the festival, which began initially to promote the local mud industry, has since become a major tourist attraction. but the festival is not just for fun, though. a presentation is made for prospective importers of cosmetics made from the beach mud. firms in nine countries, among them taiwan, india, mexico, sent officials to the presentation. >> translator: the boryeong mud is rich in min