Visited this ghost city during a trip in December 1989. Nobody seemed to take care of the place back then. The area was open, and no fees needed to be paid. Our group spent the night in the open air under a full moon (if I remember correctly) on top of the pavillion and we woke up with a beautiful sunrise. Arriving in the evening and leaving early morning means that it was dark most of the time we were there. It served as our campsite and we had not much time to explore the grounds, but still, it was a wonderful experience.