Windermere was terrific (just like the Highlands but warmer, more places to eat and no midges!). The event was based at the YMCA's Lakeside base at the south end of the Lake so there was lots to do for those not swimming (took the kids canoeing, rock climbing and even had a go at archery the next morning). The swim was followed by a BBQ, bar and campfire. Apparently there were over 300 swimmers (~200 swam the 1.5k and ~100 of us swam the 3k). The 3k route extended 1.5k up the lake to a small island (Silver Holme - supposed to be the inspiration for the childrens classic "Swallows and Amazons") and back again. At the island you could stop on the jetty to be served hot chocolate at the lifeguard station (staffed by two very attractive girls in denim miniskirts and tight green wellies). Managed the distance in just under an hour (would have been quicker if I hadn't tarried so long at the lifeguard station).
In addition to the two Outdoor Swimming Society / Breastrokes Charity swims; earlier that morning I noticed ~20 swimmers taking part in the British Long Distance Swimming Association's swim of the entire lake (10.5 miles!!!) - now there's a target for next year!
JIM
P.s. Managed to avoid the man-eating monster catfish (I believe it's the Lake Districts version of the Loch Ness Monster).