Main Beach is the largest and most popular stretch of beach in Laguna. It is located in the middle of the town where Broadway and Ocean Avenues intersect Coast Highway. The best known landmark on this beach is the white lifeguard tower located in the middle of the beach.

This beach is mostly sand bottom (rocky at the northern end near Bird Rock) with shorebreak type surf which makes it very popular with swimmers, bodyboarders, and body surfers. Surfing is not permitted on Main Beach during the summer months. The surf can be large and dangerous with numerous rip currents and heavy shore break waves.

Popular activities at this beach are basketball (there are two courts at the north end), volleyball (there are several courts on the beach) and other sand activities. There is a boardwalk that runs the length of the beach so it is a nice place to take a walk or people watch. Shower and restroom facilities are provided on both ends of the beach. Since it is in the middle of the town, it is a short walk from the beach to the numerous restaurant and shopping areas that are downtown.