Oh definitely got lots of walking, that's for sure. We had such a great time, I love going down there and all we do. The only thing I wish would change is not have upper 80, lower 90 degree weather and humidity being high. :D
The hike is 15 miles round trip. And I must confess, the route I am taking is probably half that because you can drive half of the way up. But, when I was a young girl, I used to hike up the back, the whole 15 miles with my girl's camp. It took us the WHOLE day, leaving very early in the morning and getting back just before dark.