I’m sorry for this additional post, but I cannot edit my earlier posts and I wanted to add a quick detail that I should have included about Site #3: On the left side of the photo, the terrain continues uphill into the stand of young Doug firs that is behind my driveway. In this stand of firs, the trees are very close together so the canopy is completely closed throughout the stand. So there is cooler air in there and as long as it is not during the heat of the day, I suspect this cooler air will be rolling down the hill into the area where I will be conducting the exercises. This movement of cool air down from the Doug fir stand may also be true for site #1. Thanks for letting me add this bit!