Skinny Dippers Set Record 400 join in nude swim to raise money for cancer research By Mark Russell, Newser Staff Posted Jun 20, 2011 10:09 AM CDT 6 comments Comments About 400 naked swimmers set the world record yesterday at a Wales beach for world's largest skinny dip. (berrybandage) (Newser) – Four hundred naked bathers took to the water in Wales yesterday, attempting to set the record for world's largest skinny dip, reports the Guardian. Organized to raise money for the Marie Curie Cancer Care charity, each swimmer had to get into the water at least up to the waist and stay there for 10 minutes. The previous record was 250 skinny dippers. "Just back home and still grinning," wrote one participant on Facebook. "What a awesome sight. It really is something that I will never forget."