100. San Francisco to Marin Headlands Hiking
https://youtu.be/IjDf1fQabhw The Marin Headlands has an amazing richness of history and biological diversity . The Marin Headlands is a hilly peninsula at the southernmost end of Marin County, California, United States, located just north of San Francisco across the Golden Gate Bridge, which connects the two counties and peninsulas. The entire area is part of the Golden Gate National Recreation ..