Bug Springs Trail in the Catalina Mountains of Arizona looked to have some good potential for nude hiking. It has a corridor of lush mountain vegetation and my investigation using google maps showed it to be a pretty significant stretch. It is less well traveled, perhaps because it is either uphill all the way, or at the other end, a trailhead rises steep, before slowly dropping over a couple of miles.
It looks best to use two cars, one at each end. Looking further on the HikeArizona website, I got the elevation and grade. I also saw that it has a great deal of popularity as a bike trail on internet, which could be a downside.
The elevation will make it a good cooler temperature today. We’ll find out.