Oddly this all reminds me of days gone by when I was a student, drysuits had not been invented or were certainly out of the reach of pockets of poor students. We sailed on a reservoir on the top of the Pennines which in the winter months never seemed to get above freezing. One weekend we all piled into old clapped out cars that did not have any heating systems in them (that seemed to work) and drove to the club. We were met by a frozen lake, so sailing was off. Instead being hardly or more correctly stupid souls we decided that we would play Ice Hockey instead, easy we had the ice, paddles were used as hockey sticks and a small flat stone was used as a puck. Luckily nobody fell through the ice, but from memory the game lasted a mere five minutes before we retired to the warmth of the sailing club before trudging back home.