Bikers at Angel Island State Park, in San Francisco Bay, CA, California. People disembark and picnic at Ayala Cove, then hike, bike, or tram perimeter road, with stops at Civil War era Camp Reynolds, and its restored officer house, or Spanish American War era Fort McDowell..Photo camari256-70522..Photo copyright Lee Foster, www.fostertravel.com, 510-549-2202, lee@fostertravel.com.