Spy on migratory waterfowl while touring salt marshes, vernal pools, and bay tributaries on this 1.6-miler near Oakland and San Francisco.

This 8.4-mile circuit in Andrew Molera State Park showcases California's most prized natural assets--sandy beaches, killer sunsets, and giant redwoods.

Hike this rolling 5.8-mile loop on a weekday for quiet trails and frequent sightings of wild turkeys and deer.

This challenging, 6.8-mile out-and-back is a classic in spring when lush greenery and riotously colored wildflowers cover the Bay Area foothills.

Enjoy stellar views of San Francisco Bay, Alcatraz and the Angel Island on this 6-mile loop through Golden Gate National Recreation Area.

Before Napa Valley got its grapevine rep, the landscape likely resembled 2,000-acre Bothe-Napa Valley State Park, where redwoods shade this mellow 4.6-mile trail.

This 9.6-mile hike offers a tour of the Marin Headlands, then loops to include fine bluff views of San Francisco Bay and the Pacific. Bring extra clothes; the weather changes quickly.

This 5-mile loop wanders through huge redwood stands along the western slope of the Santa Cruz Mountains. Extend the trip with an overnight at a Sierra Club hut.

The 4-mile climb to Mt. Livermore is the most ambitious hike on Angel Island, the historic immigration station in the center of San Francisco Bay.

Climb to the site of a legendary plane crash on this 5.5-mile loop through the rolling hills of Dry Creek Pioneer Regional Park.