She does all the 5K charity walks with my wife for the past 2 years as well. They are never the last to make it. We started letting her hike with us sort of by accident. I always had her in a Kelty child backpack carrier and took her on alot of hikes. We were going on a quick 4 mile hike through a dry slot cayon thats really level and an easy hike. The kid started walking and refused to be carried. SHe feel asleep as soon as we got back to the truck. Since then she likes to hike.