And that's not all - the Orange County Sheriff's Department helicopter captured footage of all the sharks, as Deputy Brian Stockbridge instructed the people in the water.
The lurking shadows of the big fish were spotted close to the surf line from Capistrano Beach in Dana Point to San Onofre State Beach, south of Los Angeles along the Orange County coast.
Lifeguards say there have been no reports of swimmers or surfers being bumped or charged. A couple people were out paddle boarding when all of the sudden, the police showed up because SHARKS ALSO SHOWED UP.
Fifteen great white sharks have been filmed swimming near a group of paddle-boarders in southern California.
The sightings come just days after 10-20 sharks were spotted in the Long Beach Area. Above, a great white shark that presumably did no such thing. "The sharks are as close as the shoreline".
"The report we got from the sheriff's was very similar to the reports we've had before with the juveniles in the area at Beach Road", he said.
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Because juvenile sharks don't hunt larger marine mammals, they're much less likely to mistake a swimmer for their typical prey. "We'd spot them periodically, and towards the end of the summer they disappeared".
On Thursday morning, Long Beach lifeguards confirmed there had been sightings, and that a shark advisory was in effect.
Southern California has a bit of a shark problem these days.
According to CBS News, Chris Lowe, a marine biologist, said: "Shark populations are increasing".
Since 1950, there have been less than two dozen confirmed shark attacks in San Diego County - and only two fatalities among those incidents. "They've been protected in US waters since 2005", Lowe explained.