So let me get this straight - you drive to a gym, put on sleek climbing shoes, put on a safety lanyard, sign a waiver and hold harmless agreement, and then pay the gym money in order to climb a tall, plastic, adult-sized McDonald's Playground with nifty composite footholds, all in the name of fitness? Try throwing hay for a few hours. Try hunting up the side of a mountain.
(Where the heck is the thumbs down button on this thing?)