EMBARCADERO. During Alcatraz's 34 years as a prison, most of its inmates were simply high-risk escapees and troublemakers. Still, the prison plays strongly in national memory thanks to infamous residents like Al "Scarface" Capone and Robert "Birdman" Stroud. An average stay on "The Rock" lasted five years, and although liberties were abbreviated, prisoners were afforded magnificent views of San Francisco and the Golden Gate Bridge. Tours of the island focus largely on the desolate prison itself, including cell blocks, the cafeteria and the prison yard. Spring for the audio version of the tour, and get tickets in advance if at all possible. Booking windows and departure docks can be found at Pier 33.

ANGEL ISLAND. One of the great things about San Francisco is its treasure-filled bay. Angel Island, only a short ferry ride from San Francisco, Tiburon or Vallejo, is perfect for either a short or long excursion. Bring a picnic lunch and idle the time away amid cool breezes and great views. If you feel ambitious, Mount Livermore, the island's 781-foot anchor, provides plenty of opportunities for hiking, beginning with a five-mile perimeter trail. From April to October, enjoy the Cove Café, and rent a bike to get around more easily. Camping is available, too.