Madjack:
One word of caution on these GPS apps. They drain the battery very quickly!!!
I went hunting with my brother (he's the hunter, I go with him for the exercise and to get out in the woods) and I used "iMapMyRide" which does GPS tracking of walking, running, biking. My battery was down to the red level within 4 hours. And, I forgot my spare battery transfer, and my car charger (we were in his car). I just wanted to make sure I could get back to the car
I do not have a good sense of direction, so it was a good thing that the sun was shining

, and good thing my brother has a better sense of direction than I do
Verna