Forbes did an article on "The Most Haunted Hotels", complete with slide show.
San Diego's Hotel del Coronado was on the list! The Coronado is a great old Hotel complete with beach access. According to Forbes, the Coronado also comes complete with its own poltergeist.
Here is the skinny from Forbes.com:
“Ghostly tales abound at San Diego's Hotel del Coronado. The most well-known legend is that of Kate Morgan, who checked into the hotel in 1892 to meet her estranged husband. He never showed up, and days later she was found dead on the beach from a gunshot wound. Some believe her spirit still haunts the hotel, and there have been numerous reports of noises, odd breezes and sightings of ghosts. When President Ford visited, one of his Secret Service agents complained of odd noises. He was staying in Morgan's room--a classic tale of one spook meeting another.”