Upvote:1
It's most strange, I've spent the last 30 minutes searching (using advanced queries and location specific keywords) for places to mudslide in the UK and I can't seem to find anything. As you said there are plenty of mud runs, but no mud sliding to speak of. Perhaps you could contact a mud run host, and see if they will allow you to slide down a few hills for fun? Alternatively you could find any boggy hill in the countryside and pour a reasonable amount of water on it and slide down it...? I've done this before at Stafford castle.