Bog snorkelling is a sporting event that consists of competitors completing two consecutive lengths of a 60-yard (55 m) water filled trench cut through a peat bog, in the shortest time possible.
Competitors must wear snorkels and flippers, and complete the course without using conventional swimming strokes, relying on flipper power alone.
Wet suits are not compulsory, but are usually worn.
More information can be found on the
Northern Ireland Bog Snorkelling website
Wales Bog Snorkelling website
UK Active - Outdoor Pursuits and Extreme Sports