brave lads!
I think crazy is more appropriate But for divers that goes without saying.
All I can say is that I am glad that I went as it was very cool to have the snow falling on us while in the water. I used to live up north and so driving in it does not bother me.
My coldest temp for the year so far is 42F. Still on the warm side.
I don't know where you find those cold spots Skookumchuck but I will leave them for you