So you've read a city guide and you've done Balboa Park, the Zoo, the beaches, the Mission, Fashion Valley, Coronado, the whale watching, the harbor cruises, the Maritime Museum, Legoland, Sea World and La Jolla. What more could San Diego offer? I mean, other than Old Town, Mission Trails Regional Park, Cabrillo National Monument, the Del Mar Racetrack, the Gaslamp Quarter, the Quail Botanical...