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.

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