The Boryeong Mud Festival is held every year on Daecheon beach in South Korea. Thousands of gallons of mud are taken from the Boryeong mud flats to create attractions such as a huge mud pool with mud slides.

The festival runs for two weeks and attracts enormous crowds; organisers claim more than two million people attended the 2007 festival.

The mud is rich in minerals and is used in cosmetic products; indeed the festival was originally started as a marketing vehicle for Boryeong mud cosmetics.

Boryeong Mud Festival
Tourists play in the mud during the Boryeong Mud Festival at Daecheon beach in South KoreaReuters
Boryeong Mud Festival
All the mud you can get: Glastonbury eat your heart out                                Getty
mud fight
A tourist plays in the mud during the Boryeong Mud Festival at Daecheon beach, South KoreaReuters
Boryeong Mud Festival
A reveller flashes a smile amidst all the mud          Reuters
Boryeong Mud Festival
One day muddy tattoos might even catch on           Reuters
Boryeong Mud Festival
Some couldn't wait to immerse themselves in the mud              Getty
Boryeong Mud Festival
Mud lovers frolic in the dirty stuff            Getty
Boryeong Mud Festival
Some mud worshippers just can't get enough of the stuff             Reuters
Boryeong Mud Festival
A mud reveller grins and bears it              Reuters
Boryeong Mud Festival
Time to clean up our act: Boryeong festival-goers scrub off the mud             Reuters
Boryeong Mud Festival
Mud everywhere                           AFP
Boryeong Mud Festival
Mud, oh glorious mud                           Reuters
Boryeong Mud Festival
Some muddy wrestling                       Reuters
Boryeong Mud Festival
Boryeong crowd sprayed with water to get the mud off                   Reuters