Earth : North America : United States of America : California : Bay Area (California) : North Bay (Bay Area) : Marin County
Marin County  in the Bay Area of California is a bedroom community across the Golden Gate Bridge to the north of San Francisco, affluent Marin County is home to ex-hippies and dot-com millionaires. It has rugged wilderness areas on its western coast, while towns on the Bay have a nautical air dating to the 1800s.
Be careful to check for ticks  after hiking in fields in the bay area. There is a high rate of lyme disease transmission in the Bay Area. If a bulls' eye rash develops at the tick bite site, immediately seek medical help and treatment with antibiotics.