We started out this morning on a trail that goes around the base. I don't know for sure how long it is, but we walked for 3 hours. At least it wasn't a real hot day. Robert & I are the only two that walked the whole way. Kristy drove the car and brought us water, that was nice. Andy walked most of the way. Katie, Steve & Robbie walked quite a bit. It may not have been a marathon, but for us, it seemed like one.