According to About.com, following are the best Santa Cruz beaches by type:
Amusements: Main Beach. The Santa Cruz Beach Boardwalk is located at Main Beach. It's one of California's most classic oceanfront amusement parks. 
Beach Volleyball: Capitola and Main Beach. You'll find plenty of nets on both beaches.
Bonfires: Seacliff and Sunset. These are popular places for beach bonfires, so arrive early to stake out the best spots.
For Kids: Main Beach. With the boardwalk nearby and lifeguards on duty during the busiest times, this beach has lots to do.
People-Watching: Main Beach. With all the goings-on a the adjacent amusement park, this place is people-watcher's heaven.
Romantic: Seascape. The long, sandy beach just below this seaside resort is accessible to everyone, but it's seldom crowded. For a romantic, seaside, sunset stroll without getting sand in your shoes, try the walk along West Cliff Drive.
Surfing: Steamer Lane. The place where pioneering big-wave surfers got their start still boasts the area's best surfing. Don't miss the nearby Surfing Museum.
If you are looking for a rental to enjoy these beaches please check out www.coastalrentalslp.com
About the Author: The above info was provided by Glen Mitchell, licensed Real Estate Broker in California (#01345619) and Hawaii(#18416). Glen can be reached via email at glenmitchell@remax.net or by phone at 800-688-5875 (ext 0).

Have a home to sell in the California Bay Area? I'd be happy to share my marketing expertise and experience with you!
For MLS access and no obligation real estate listing searches, begin by clicking here.
I service the following Counties: San Mateo, San Francisco, Santa Clara, Santa Cruz, Monterey, and Maui. Partial list of cities include Half Moon Bay, El Granada, Montara, Moss Beach, Hillsborough, Burlingame, Atherton, Palo Alto, Woodside, Pescadero, Pacifica, Daly City, Los Altos, Soquel, Aptos, Capitola, Scotts valley, Kihei, Wailea and more.
Click here to view Glen Mitchell's Real Estate Profile.
Click here for property management info.