Betchworth Castle ruins is set just up from the golf course. We came across it using Google Earth and decided to pay it a visit after our intended location had been torn down.
The information below is from Wikipedia.
The castle is said to be haunted by a black dog (death dog) that prowls the ruins at night. The grounds of the castle (now Betchworth Park golf course) are also said to be haunted. Supposedly, a “Lord Hope” (either a mistaken reference to Henry Thomas Hope or possibly his grandson Francis Pelham-Clinton-Hope, 8th Duke of Newcastle), chased and killed an escaped convict with his sword, only to find out that it was in fact his own son he had killed. “Lord Hope” is said to now walk around the ruins in regret.