When I was in college and about 19 years old, I went with a friend to a state park. It was the middle of winter. He and I walked through the barren forest towards a frozen river. There was snow on the ground. We walked out onto the ice. It appeared that the river was 3 or 4 feet deep in that spot under the ice (I am not sure we how we quite figured that out.)
We went back on shore and found a big log. We took the log out onto the ice. Together, my friend and I were able to smash a big whole in the river. We stripped down to our boxer shorts (or just “shorts” if you are uncomfortable with that revelation). We took turns swimming in the water.
It was fun! We put our clothes back on and went back to school to celebrate our victory.