My BF taught me the trick of cold water in the shower. After your nice, hot relaxing shower, turn the water flow as cold as you can stand it and direct the flow onto your legs... thighs and calfs, front and back. I don't know the reason this works, but it does help prevent cramping and sore muscles. A cold dip in a pool, or some such body of water will do the trick too. Good luck.
Barb