My wife and I drove to the 100th South trail head and went north. I completed 2.2 miles with no rest stops. We began our trek about 11 am. I forgot my two-phase timer, and I just approximated running 25 seconds and walking 50 seconds. The temperature when we arrived back home was in the mid 50s (F). There weren't many people on the path. Most people, it seams, are working during the times we run or walk.
I mentioned a few weeks ago that my left knee was sore. I've been stretching hips several times per day since then, and my knee is no longer sore.