Surf Dog Surf-A-Thon is an annual dog surfing contest held in Del Mar, California to help raise funds for orphaned pets in the care of the Helen Woodward Animal Center.

Derby the surfing dog competes at the 16th Annual Surf Dog Surf-A-Thon at Del Mar Dog Beach, in Del Mar, California, U.S., Sept. 12, 2021.

Michael Willis and his surfing partner Bridget compete at the 16th Annual Surf Dog Surf-A-Thon at Del Mar Dog Beach, in Del Mar, California, U.S., Sept. 12, 2021.

Surfing dogs Derby (L) and Teddy compete at the 16th Annual Surf Dog Surf-A-Thon at Del Mar Dog Beach, in Del Mar, California, U.S., Sept. 12, 2021.

Kioni “Kentucky” Russell Gallahue and his surfing partner Derby exit the water after competing at the 16th Annual Surf Dog Surf-A-Thon at Del Mar Dog Beach, in Del Mar, California, U.S., Sept. 12, 2021.

Surfing dogs participate in the 16th Annual Surf Dog Surf-A-Thon at Del Mar Dog Beach, in Del Mar, California, U.S., Sept. 12, 2021.

Surfing dogs compete at the 16th Annual Surf Dog Surf-A-Thon at Del Mar Dog Beach, in Del Mar, California, U.S., Sept. 12, 2021.

Surfing dogs compete at the 16th Annual Surf Dog Surf-A-Thon at Del Mar Dog Beach, in Del Mar, California, U.S., Sept. 12, 2021.

Surfing dogs compete at the 16th Annual Surf Dog Surf-A-Thon at Del Mar Dog Beach, in Del Mar, California, U.S., Sept. 12, 2021.

Surfing dogs compete at the 16th Annual Surf Dog Surf-A-Thon at Del Mar Dog Beach, in Del Mar, California, U.S., Sept. 12, 2021.

Homer Henard and his surfing partner Skyler compete at the 16th Annual Surf Dog Surf-A-Thon at Del Mar Dog Beach, in Del Mar, California, U.S., Sept. 12, 2021.

Surfing dog Teddy waits for his turn to compete at the 16th Annual Surf Dog Surf-A-Thon at Del Mar Dog Beach, in Del Mar, California, U.S., Sept. 12, 2021.

Surfing dog Gilbert wipes out during competition at the 16th Annual Surf Dog Surf-A-Thon at Del Mar Dog Beach, in Del Mar, California, U.S., Sept. 12, 2021.

Surfing dog Faith competes at the 16th Annual Surf Dog Surf-A-Thon at Del Mar Dog Beach, in Del Mar, California, U.S., Sept. 12, 2021.