Read your Orange County map to determine the best route to the beach. While the 101 highway, along the beach, is generally safe for bikers, you should avoid the freeways, like the 405 and the 5, which run north-south parallel to the beaches. If you're located west of the freeway, ensure you can pass under or over the road safely before you bike to the beach. If you don't know how you're going to cross the freeway, you may want to consider driving to the beach instead.
Rent a bicycle, if you don't have one already. Orange County is full of bike rental shops that can provide you with a bike, helmet, and lock for a nominal hourly fee. Many bike rental shops can also provide maps and tips for biking in the area. They can also give you information on California's biking laws.
Learn California's biking laws before you set out. Orange County is a busy place, even in the off-season, so you'll want to know how and when to yield to pedestrians, cars and other cyclists. The California Department of Motor Vehicles website lists safety guidelines for biking in California - like not using headphones while riding and how to use proper hand signals.
Set out on your planned route. Wear a helmet and bring your lock. As you bike to the beach, be aware of other cars, cyclists and pedestrians, particularly on the busy Highway 1. Once you arrive at the beach, bike racks will be readily available. Ensure you're not locking your bike somewhere that's marked "No Bikes".
