Old Town San Diego
Old Town San Diego seems to crawl with haunted locations. From your very first step inside the visitor's center at the Robinson-Rose House, you're in a haunted local. Walk next door to the El Fandango Restaurant for the White Lady, then next door to the Casa de Bandini Restaurant for a translucent grey dressed woman. Afterwards, cross the street to the Casa de Estudillo for several spirits and finally down San Diego Avenue for the king of haunted locals: The Whaley House. Of course no haunted area would be complete without a cemetery and the pavement covered El Campo Santo fits in nicely.
Please check out http://www.oldtownsandiego.org for more information about Old Town.