Open this photo in gallery:A dog catches a wave during the World Dog Surfing Championships, on Saturday. PACIFICA, Calif. Key points and original sources are listed below.

• Open this photo in gallery:A dog catches a wave during the World Dog Surfing Championships, on Saturday. Canines were judged on factors including how long they could stay on their board, the size of the wave and their confidence.Haven Daley/The Associated Pres...S1

• PACIFICA, Calif. (AP) — Top dogs were riding waves Saturday at the annual World Dog Surfing Championships as hundreds of spectators cheered -- and barked -- from the Northern California beach.S2