San Francisco's Pier 39 sea lions: Why they hang out here
Here's why 30 sea lions are popping up around San Francisco this year
Pier 39 marks 27th anniversary of the arrival of sea lions
Pier 39 marks 27th anniversary of the arrival of sea lions
The great 2014 Pier 39 sea lion disappearance
Big boy' sea lion spotted on San Francisco's Pier 39
Pier 39 marks 27th anniversary of the arrival of sea lions
Popular Ballard sea lion pier altered with a big corrugated pipe
California Sea Lions at PIER 39 - PIER 39
San Francisco Sea Lions And Seals Relaxing At Pier 39 Stock Photo