California Sea Lions Lying Under The Sun On Docks Of Pier 39 In San Francisco, California

california sea lion pier 39 colony group many basking sunbathe relax laying lying pier39 sleep animal aquatic dock san francisco california sea lion bird sealion water tourist attraction resting waterfront pier wildlife attraction environment tourism gull marine platform natural outdoor bay san francisco bay zalophus californianus tourist mammal travel harbor habitat marina landmark ocean nature behavior rest