Went on a 4 mile hike with husband of 3 months, my son who's in college and his gf. The hike included a steep mountain, so steep I was crawlling on my hands and knees grabbing roots and rocks. There were ropes to pull yourself up and to keep from falling down the mountain. I am exhausted, my legs and back ache. I want to get in better shape and quit smoking. Oh there was a waterfall at the bottom with kayakers tumbling over class 5 rapids. Cool to watch.