Thanks to Dave for introducing me to the World Bog Snorkelling Championship, which is held in Central Wales, where snorkeling is spelled snorkelling. From the BBC photo, it looks like it may be extremely shallow. According to wikipedia, bog snorkelling started around 1976 and world championship was first held in 1985. It seems the sport has also inspired other related events, “including the associated mountain bike bog snorkelling (where competitors must ride through the bog on specially prepared mountain bikes), and the Bog Snorkelling Triathlon.”
It sure looks like fun. Perhaps it’s time to enter your local competition, in Wales or Australia!