Haha, some of my mates were in the near-zero temp water for 10+ minutes...one guy was in the water for 15 minutes! They are totally insane. Of course with a lot of practice and all that, but later they admitted, it wasn't fun anymore.. But thats proof that our limits can really be pushed. To be honest, my own body would also withstand more, but fingers don't agree.. I might get some thicker gloves for next winter.