No strangers to the surf, the princes have spent the summers of their youth in the area around the small seaside resort of Polzeath. And even Prince Charles has been photographed along the shores in a wet suit!
Looking fit and fine in their black wetsuits, the royal brothers went into the choppy water with friends, including Tom van Straubenzee.
Once their wet weekend ended, it was back to work for William, who showed his father Prince Charles around his airbase RAF Valley, on Anglesey, north Wales. The visit came during Charles and his wife Camilla's annual tour of Wales.
Mark Hemsworth / INS