Hounds Hang 20 at the 7th Annual Loews Dog Surfing Competition at Dunes Park Beach in Imperial Beach, California. There are four heats in this competition: Small Dogs, Large Dogs, Tandem and the Ultimate Champion Round. Each dog is given 10 minutes to catch waves and their score is determined by their top 2 waves. Waves are scored on confidence level, length of ride and overall ability to grip and rip it. June 16, 2012.