Not that I am training for any cold, open water swims at the moment. But saw this article on the FINIS Blog, with a number of tips on how to train for such an event, plus comments from other readers, and want to save this link. I suspect that I will do the La Jolla Rough Water Swim again next year. I did it this year. Water temps were in the low 60s and no wet suits permitted. Definitely bears some thinking on how to get prepared for it next year. Thankfully I was only in the water for 38 minutes this year, and hopefully next year even less, but the cold did take a toll on my body.
Follow the link above to see the article on the FINIS Blog.