A girl remained missing Wednesday after a large wave swept her and her family into the ocean off Laguna Beach on Tuesday evening, even as rescuers widened the search along the coast. Nearby people were able to pull the mother and her son from the water, but the girl was not found.

The Laguna Beach Marine Safety Department responded to the call about swimmers in distress around 7:30 p.m. Tuesday, and by Wednesday more than 30 people were searching underwater and from the air. Kai Bond said searchers were still pushing through every possible lead to find her.

The effort comes as dangerous surf continues to pound Southern California beaches. The National Weather Service had a high surf advisory in effect for Catalina, the Santa Barbara islands, the Malibu Coast and all Los Angeles County beaches, while hazardous beach conditions were expected through Thursday afternoon along the San Diego and Orange County coastlines.

That wider surf pattern has already kept lifeguards busy. Newport Beach’s chief lifeguard said his department made 105 rescues on Tuesday alone, and waves at the Wedge reportedly reached as high as 20 feet this week.

Bond said the wave came up and pulled the family into the ocean, and the search grew after overnight efforts and a morning sweep off the Laguna Beach coast failed to turn up the girl. The Orange County Sheriff’s Department and U.S. Coast Guard joined the operation, and searchers continued to work the water from above and below.

The painful reality for the family is that the people closest to the scene got the mother and son to safety, but the missing girl still had not been recovered by Wednesday morning. With the surf still running high, rescuers have not said when the search will end, only that they will keep working the shoreline, the water and the air until they know more.