After Christina's wedding, we decided - on the spur of the moment - to stop by the Valley Forge National Park. There is a six mile loop around the park or an eleven mile loop. You can either walk or drive either loop. We decided to walk the smaller loop. This provided the perfect opportunity for me to test out the GPS unit. As you can see below, it worked very well. I just turned it on and clipped it to my belt loop. I didn't think about it the entire time.