My wife and I vist York 8 or 10 times per year,It is such a beautiful place to visit,plenty to do and see,We have been on all of the ghost walks and we have enjoyed all of them,but we both agree that the ghost walk that starts at the Golden Ball pub is the best one to go on,it takes about 45 mins to 1 hour,The guide is very informative about the history of the city,it leaves the pub at about 7.30pm but may be earlier now the dark nights are closing in,so please check before you get there,i believe the pub has a website (google it)as they are supposed to be the most haunted pub in York,and they have rooms you can stay in overnight,they also do some very nice food,We enjoy calling in to all the pubs with lots of history about them of which there are many,(good job i only have half a pint in each one).If you need any more information don`t hesitate to contact me,Hve a great time and please let us know how youre visit went.