How to relieve soreness?

I spent all day at my cousin's lake house, where they have jet ski's and those big Paparazzi things you pull behind the jet ski. I'm sore everywhere from all the swimming and moving and hanging on, so my abs are sore, my neck, my arms, my inner thighs, everywhere. If you could give me some exercises or stretches to help ease off the soreness, I would really appreciate it :)