Corona del Mar State Beach
This beach is better known as “Big Corona” is the most popular triathlete swimming beach in OC. Parking is $15 in the lot, or you can park on Ocean Blvd near Heliotrope street and walk down the steps to the beach. Meet on the grassy area next to the parking lot closest to the jetty at Lifeguard Tower #3. The jetty provides a border to the right of the beach.