Flatmates celebration

What is this sport Bog Snorkelling? I hear you ask. Well first you have to knowwhat a bog is. A bog is an area of land in the countryside which is always softand wet. When you walk through it your feet might get stuck and it makes asquelching noise. The particular bog in question is what's known as a peat bog.
　　So that's a bog. And what about the snorkelling part? Well normallysnorkelling is what you do on holiday, in the warm blue sea. Swimming withyour head underwater breathing through a plastic tube called a snorkel.
　　Bog Snorkelling then is a combination of those two things. And to learn moreabout it I spoke to one of the organisers and founders of the World BogSnorkelling Championships, Gordon Green.
　　Gordon GreenWhat we’ve done is we’ve dug a trench in the peat bog so that it fills with a nice dirty water.
　　Callum:  Gordon says that they dig a trench in the bog. A trench is a kind of an oblonghole. And when they dig this trench in the bog it fills up with dirty water whichthe competitors, the people taking part in the competition have to swim through.
　　Listen again, this time listen out for how long the trench is and how far thecompetitors have to swim. Gordon uses the traditional measurement of a yard.
　　A yard is about .9 of a metre, so nearly a metre.
　　Gordon GreenWhat we’ve done is we’ve dug a trench in the peat bog so that it fills with a nice dirty waterand the trench is 60 yards long and the competitors have to swim two lengths of this bog sothey’re swimming 120 yards.
　　Callum:  The trench is 60 yards long and the competitors have to swim two lengths,that's 120 yards which is about 110 metres. Gordon goes on to explain moreabout the rules.
　　Gordon GreenBog snorkelling is a sport where you have to breathe, through a snorkel, you can use flippersand the majority do use flippers, but you have to breathe through a snorkel and you’re notallowed to do a crawl or a breast stroke, you have to keep your arms straight in front of you ordo a dog paddle.
　　Callum:  The competitors aren't allowed to use any traditional swimming strokes, likefront crawl or breast stroke though they can use what we call a doggy paddle, away of swimming using your arms like a dog uses its legs when swimming.
　　They have to breathe through a snorkel and they can wear flippers, or fins, ontheir feet.
　　Swimming is now not the only bog snorkelling event. If you want to you canalso try Mountain Bike Bog Snorkelling. I asked Gordon to describe that.
　　Gordon GreenWe’ve dug a deeper trench and we have to have a special bike. What we do is fill the framefull of lead, put water in the tyres instead of air. We’ve got lead weights on the bike and theperson that’s riding it has to wear a lead belt round his waist or her waist and also lead in arucksack so we’ve got the correct buoyancy so that when you cycle under the water you canactually do that and breathe through your snorkel. They have to then cycle underwater and it’slike cycling in treacle, it’s very hard work and that’s become a very popular event as well.
　　Callum:  So the trench for the Mountain Bike event is deeper and the contestants ride aspecial bike with lots of weight. They have to cycle through the bog,underwater, again, breathing through the snorkel!