I bet that water is pretty cold!
https://www.youtube.com/watch?v=WwfCoPfG-P4
BRRRRRrrrr
You could see his bloodflow was significantly decreased to the body underwater vs mid-chest and higher, that was out of the water. Brrrrrr. Gold bless him!
I could stand the cold for a little while, but my biggest fear is getting stuck under the ice.