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What is your first reaction when you see a massive pool of mud? Step gingerly around the edges - or whip your clothes off and jump headfirst into the middle of it?

It's a regular sight at any UK festival. After mother nature has done her worst, ravaging campsites with torrential summer rain, hardcore festival goers shun the bands on the stage (who needs Biffy Clyro when you've got a puddle of filth?) and head instead to the nearest mud bath to wrestle, swim and slide.

It's not always for the best though - ask the poor lad who did a mud-slide headfirst into a girl having a wee at V Festival, and as for the bloke found doing backstroke in the mud at 6am in the morning at Glade Festival - it's best you just see it for yourself...

Check out one of the dirtiest, filthiest festival videos you'll ever see. Not one for the glampers - FYI.