German Wasserwacht Spremberg arranged a 48 hour swim just recently, inviting amongst others Danish (real) long distance swimmer Grith Sigsgaard. She won and set a 125 kilometer world record, which is about 2.6 kilometers an hour, every hour for two days. If anyone is interested, they will be arranging a 24 hour (sprint?) swim on 18 – 19 July 2011. Via SwimNews.dk.