I haven't been to York for about 10 years, but when I was there, it was a horrific place where if I stayed out too late, I feared that vampires would come up from the sewers, no one would notice, and I would never be seen again.
I do remember one restaurant that we ate at, but not the name. At 10:00, the place cleared out and became a strip bar. The same group of strippers moved around the area from venue to venue. They were not hot. If it's anywhere near the same, pack yourself a box of food before you get on a plane. The food was bad, and the people were really bizarre out there.