Two gray whales were spotted in San Francisco Bay Saturday afternoon, U.S. Coast Guard officials said.
A Coast Guard boat and other mariners reported seeing gray whales in the area around the Golden Gate Bridge and Alcatraz Island beginning around 2:40 p.m., Lt. j.g. Jacob Aulner said.
The Coast Guard sent out an advisory to boaters informing them of the whales' presence and directing them to exercise caution while boating around the Bay.
Boaters should give leave at least 100 yards of space between the whales and the vessels.
Aulner said he couldn't comment on how often the whales come into the Bay, though he noted it is a natural habitat for them.
“It's perfectly normal,” Aulner said.