These furry athletes "hang 10" at the Purina Pro Incredible Dog Challenge

The Purina Pro Incredible Dog Challenge stormed into Huntington Beach, Calif. on June 10, 2016.

The canine competitors showcased their incredible surf skills for dozens of spectators, including Olympic Champion Misty May-Treanor, who served as a guest judge for the event. The competition moves on to St. Louis for the National Championship starting September 30.