Cemetery at Saint Patrick's Church of Ireland in Newry, County Down where my ancestor William Humphreys is buried

I would like information about Saint Patrick's Church of Ireland in Newry, County Down, Northern Ireland cemetery where my ancestor William Humphreys is buried.  I would like to make a trip to Northern Ireland to visit this grave.  I need information about the surrounding area, hotels, restaurants, etc.  Also, I need information on how to get in touch with the church that houses the cemetery. I would like all the information that I can get on my ancestor before I plan a trip to Northern Ireland.

Thank you for any information that you could give me.