Omg!
Okay, so recently I was part of this fundraiser for people living with heart problems. What I had to do is get people to sponsor me to jump into a pool of ice-cold water for twenty seconds. I raised a lot of money, but Jesus H. Christ, that water was FREEZING. You jump in and it feels like someone's squeezing your heart. I've NEVER felt anything like it. I had a lot of fun though.
The water feels like a thousand knives piercing your flesh.