|NATIONAL PARKS QUICKLINKS|
Timex Ironman Global Trainer Bodylink SystemIs your heart about to explode after multiple switchbacks? Find out just how much of a real workout you had with this GPS watch.
Photos & Text by Joe Flowers
The multi-screen format is great for observing multiple data intervals at once. Distance, heart rate, time, and altitude were my favorites. I put the external heart rate sensor on and watched my bpms sky rocket when I went up one trail in NC.