Sutro Project / Angel Island
Alcatraz's bigger and less-developed sibling, Angel Island provides unbelievable views on 14 miles of trails - truly a hidden gem! Hiking and biking are recommended, and for those with sea legs kayaking! Tram and a Segway tours are also available. Camping is an unforgettable experience, but fills up quickly - the group sites are regularly booked a year in advance.
Ferry Service runs from Pier 41 and the Downtown Ferry Building (or Sausalito and Tiburon for those in Marin County already).
Website: http://www.parks.ca.gov/?page_id=468
Wikipedia: http://en.wikipedia.org/wiki/Angel_Island_(California)
