The Whaley House, claimed at one of the two registered haunted houses in California hosts tours of it’s residence, which has been rumored to play mysterious organ music, footstep sounds on empty floors, aberrations of a family of 4 from the 19th century, levitating furniture, etc...Now, here is the link to the prices. Although the individual price is definitely not UC worthy, the school group and senior prices seem really good. Might want to call to find out more info...
Mrs. bloodninja went there and all I got was a stupid t-shirt!
She said it was pretty nifty, though, and she claims to have had contact with an otherworldly inhabitant there.