It used to be, before the concept of a public park, that the only place in a city where the proletariat could recreate was in a cemetery. It was the only place not developed with streets, homes and commerce. I don't see any problem with it at all.
In fact, we used to have a multi that started in the public cemetery, where the clues led you from the subject's grave to the home where they lived, to the business they owned and finally to the large forested park that they bequeathed to the city. It was quite fun.