My GSP is fearless and swims in any weather/temp. He got his first taste of water chasing around a 2 year old lab so he was well trained in the water.
A couple years back he went out on the ice and went into the water after a couple pintails on one of my dad's ponds. It was 17F and snowing. As I called him off he flat out ignored me, typical of pointers, and jumped in. I figured the hike was over and we would be heading back to the house, but he climbed out, shook off and didn't seem too bothered by the whole event.
Not approved behavior by me by any stretch of the imagination, but he seemed fine in the cold weather. He didn't move away from the fire after we returned that night but I didn't blame him!
I love both labs and pointers and all dogs, so I may be of no help here....
