approx 7-8 mi. I drove to Dyer park and Suzanne rode the mountain bike around the outskirts of the park as I looked to test out the Nathan Endurance hydro pack and Saucony Pro Grid Peregine run shoes. Good results on both products. We parked at the mini remote control airstrip, ran the western edge of the park and then I ran the 5k hill. Once I met Suzanne again, I ran the remainder of the park perimeter. It was hot, I ran out of fluids quickly, just using Gatorade G2 in the hydro bag. The mesh vest worked well, no stress points on the shoulders. I’ll use this for my longest runs. I should return here each week to practice the difference that hills, twisted ankles, gravel, uneven road surfaces and heat bring vs road running.