I have a new favorite park/trail in the Bay Area and it is St. Hilary's Open Space Preserve in Tiburon! This gem of a park has INSANE views of the bay. From the top of the hill, you can see much of the East Bay, San Francisco, and Marin County; including 3 of the major Bay Area bridges (Bay, Golden Gate, and Richmond-San Rafael). From one point, shown in the panorama below you can see Richmond, Berkeley, Oakland, Angel Island, San Francisco, Sausalito, and up to Mt. Tamalpais.
This site has more information on the history and ecology of the area:
|Click to Enlarge. That is Richmond on the left and Mt. Tam area on the right! Angel Island is near the center.|
|Old St. Hilary's|