Marin Headlands
Hiking up through the Marin Headlands offers gorgeous views of the Golden Gate Bridge, the Pacific Coast and the rest of the Bay Area. The Marin Headlands Trail is a moderately popular 10.1 mile loop near Mill Valley. This hike will take you through an assortment of colorful wildflowers blooming in the spring, and in the fall keep an eye out for hawks during the raptor migration. The trails are considered difficult, so come prepared; you can expect a number of activities available on the trail as well.