The video shows the large shark making its way through the waters at a distance off the beach.
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The shark was estimated to be about 10 to 12 feet long, and its markings resembled those of a great white.
According to the ABC7 Eyewitness who filmed the video, this was one of several sharks spotted in the area Monday.
MORE: Shark attacks woman wading near San Onofre Beach, tears off part of leg
This wouldn't be the first great white spotted near a popular Southern California beach in the past week. A woman was attacked over the weekend at San Onofre Beach by what officials say was likely a great white while she was wading in the ocean.
The shark bit 36-year-old Leeanne Ericson's leg, causing a potentially life-threatening injury. "All of the back of her leg was kind of missing," a witness to the attack said. "It was to the bone. It was bad. It was just as bad as you could imagine."
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Ericson was transported to the hospital and treated for the injury. The single mother of three has to undergo several surgeries, according to a GoFundMe page set up to help pay her expenses.
San Onofre Beach was closed after the incident and is expected to remain off-limits to the public until Wednesday.
No closures have been reported at Capistrano Beach due to the shark sighting.