For those tempted to risk the cold water, here's a link to an article I came across that specifically describes the body's response to sudden immersion in cold water.
The bottom line; it matters not how well you swim or if you are wearing a PDF, if you are not equipped with properly rated wet and or dry suits, it's unlikely you will survive. So please be safe! Rule of thumb is bare minimum for the unprotected is 65 degrees, but even that is dangerous if you're far from shore, so stay within length of an average pier if you do get dumped until maybe 75 - 80 degrees.
http://www.coldwatersafety.org/ColdShock.html
The bottom line; it matters not how well you swim or if you are wearing a PDF, if you are not equipped with properly rated wet and or dry suits, it's unlikely you will survive. So please be safe! Rule of thumb is bare minimum for the unprotected is 65 degrees, but even that is dangerous if you're far from shore, so stay within length of an average pier if you do get dumped until maybe 75 - 80 degrees.
http://www.coldwatersafety.org/ColdShock.html
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