Local skies will be lit up on the Fourth of July during the annual fireworks show at the Ocean Beach Pier. The Ocean Beach MainStreet Association (OBMA) will host the annual show, after spending months preparing for it. “The fireworks company does all the planning for it,” said Denny Knox, OBMA’s executive director. “We just tell them what kind of look we want and they take it from there and make suggestions on what we should have.” The 20-minute show costs $25,000 and is paid for in part by the yearly raffle at the Ocean Beach Street Fair and Chili Cook-off Festival in June, Knox said. She identified two main no-nos for those who come to the fireworks display: don’t bring your own fireworks and don’t stand under the pier during the show. “It’s always fun. Sometimes they do a special OB thing with the name ‘OB’ in the show,” Knox said. Those planning to observe the OB fireworks show are encouraged to walk down to the beach, if possible, given anticipated heavy traffic on July 4. Another popular watch spot is the hill above Sunset Cliffs. The OB Pier fireworks start at 9 p.m.