Two unusual sea lion attacks in San Francisco Bay at Aquatic Park led authorities to close the popular area to swimmers Friday as officials try to determine the reason for the aggressive behavior.
A sea lion bit a man in the groin area Friday morning as he swam in the waters off San Francisco Maritime National Historical Park, said park spokesman Lynn Cullivan. It was "a very serious bite," and the man was taken to a hospital, he said.
The cove hosts swimming and rowing clubs and is a favorite spot for dedicated swimmers. It's usually a transit area for sea lions heading to Pier 39, where they normally congregate, Cullivan said.
The area just off Ghirardelli Square, a popular square with shops and restaurants, will be closed to swimmers until Monday, he said.
Another swimmer was seriously injured Thursday after a sea lion bit him on the arm. Officers applied a tourniquet and he was transported to a hospital. Officials say he's expected to recover.