I found this article in the San Francisco Chronicle (original story is here) and it sounds like a good photo opportunity. Remember to get shots from all angles, inside and out. I am sure the people (car owners and spectators alike) may be just as interesting. And while you are there, stop by Steamer Lane for great shots of actual surfers, next to the Surfer Museum at Lighthouse Field State Beach!
Here is a gallery of photos from last year.
Surf wagons to haul in at Santa Cruz Wharf
No toy story - these woodies are the real thing
Never mind that Santa Cruz lost the official "Surf City" moniker to a Southern California city (which shall go unnamed here) ... its municipal pier is the place to channel your inner Jan and Dean next weekend. The 15th Annual Woodies on the Wharf, Northern California's largest show of classic surf wagons, brings in 200 gnarly, pre-1952 wood-paneled cars, some from as far away as the East Coast and Canada, that cry out for a load of surfboards. The day also offers clowns, free balloons and face painting for kids, while music, collectible T-shirts and prize drawings - and the wharf itself, with local surfers showing their chops in surrounding waves - will appeal to all.
Vitals: 10 a.m.-4 p.m. Sat. Free. Municipal Wharf, Santa Cruz. (831) 420-5273, http://www.santacruzwharf.com/ or http://www.santacruzwoodies.com/.