Sailing in the Med May 9 and booked a tour to see the Acropolis. I really want to see this but I am concerned with the 150 steps they say you have to climb. I am 57 years old, not over-weight but that sounds like alot of stairs. Has anyone near or over my age done this? If so, how was it? The book says that you should be in excellent physical shape - I am in good shape but I don't know what their defination of "excellent" is.