10 World’s Strangest Extreme Sports You Didn’t Know Existed (6 of 6)

Bog Snorkelling (Wales)

Picture a trench cut through a peat bog somewhere in Wales. Now add a snorkel, a diving mask, a pair of fins, and a “no traditional swimming strokes” rule—kick power only! The goal is to blitz two lengths of the trench faster than the competition. It’s cold, squelchy, and gloriously silly, drawing costumed racers and spectators who cheer like it’s the Super Bowl of mud.