Layering under a dry suit and some neoprene hand covers on the paddle called Pogies.
I also have worn any variety of thickness of neoprene gloves too, depending on temperature. 0.5 mm and pogies is the best combo.
Boating a moderate class remote canyon with ice along the banks and snow everywhere is a heck of an adventure.
Very pretty and serene.
And no rescue but you and your buddies, so bring your game.
Lost a couple friends in canyons like that, middle of summer.
Top notch boaters, their abilities way way above my skills. Got complacent in the “easy” class IV+ between the insane stuff.
RIP Derk. RIP James