The Big Brother housemates have taken to the water for this week's shopping task - in which they must 'swim the Channel' in the pool. On Monday afternoon, after they had finished their nominations, they were told that they have to swim 34km - the distance between Dover and Calais - by Tuesday evening. That's 7556 lengths according to Big Brother. The housemates have been taking it in turns to swim, and how many lengths each of them has to complete. When one housemate is swimming, two others have to sit in a boat alongside the pool in order to spur them on and provide encouragement, as well as counting how many lengths they have done. They stand to win a luxury shopping budget if they complete the task successfully, however if they fail they will be provided with only a basic shopping budget for the week. In addition, the housemate who swims the most lengths will be given a reward, while a punishment awaits the housemate who swims the shortest distance. CLICK here for all the latest Big Brother news, pictures, profiles, features and fans' thoughts
