A wayward river otter named "Sutro Sam" had made his home the ruins of the Sutro Baths near Ocean Beach in San Francisco. The otter been living in the baths since September, and scientists believe he may have come from Marin County and swum across the Golden Gate.

He has become quite an attraction for both locals and tourists, as they flock to the scenic spot in the Outer Richmond to get a glimpse of the elusive mammal. Sam has been feeding on goldfish that people have dumped into the pond over the years, and also mussels.

It's extremely rare for a river otter to be spotted in San Francisco, but Sam seems to be well-fed, healthy and happy at his new ocean-view digs. And he doesn't seem to mind the tourists.