"This woman got four feet away trying to get a photo up close. It woke up and just started chasing everybody."
NBC 7 reported that nobody was injured during the incident.
Concerns are being raised over just how close bathers are getting to marine wildlife in Southern California.
It is currently "pupping" season for seals and sea lions, meaning the animals can be even more territorial and defensive of young pups.
The area north of La Jolla has been closed until October to give space to the young animals. it is recommended bathers keep 15 metres away from the animals at all times.
"There are signs posted everywhere that you need to give them their space because they are live animals," said Charlianne.
Locals say the stand off between humans and seals has been ongoing for decades. The fact that there are other, flatter beaches is ignored by bathers who visit La Jolla for the convenience.