Pricilla,
I will review my photos and put a few up to give you an idea - I don't recall any elevators and there were a number of steps in various places and a steep hill to walk.
Even without a guide it was a great place to see. But we would not do a 2nd time. Something we expected from our guide/driver was being told to keep our tickets - Wendy and David had a problem getting into an area. We did throughly enjoy the day.