There's always a refreshing feeling that comes with being bare in nature during the Autumn. It can perhaps be the lack of humidity and the crispness present in the air. It is the cooling temperatures that come with the new season and the eager anticipation of the approaching Halloween festivities, especially if you plan to celebrate clothes-free.
Hiking bare is always one of my favorite Autumn activities. Foremost is the fact that it can usually be free from all the pesky insects (such as mosquitoes and lyme disease bearing ticks) that thrive in the summer weather. Another reason is when Autumn arrives, very few of my naturist/nudist friends complain about the heat. An excursion along the natural trails and walkways are rarely opportunities for suffering from heat exhaustion or sunstroke.
What I like best about hiking this time of year is meeting other nude groups out on the trail. People are always at their friendliest when hiking clothes-free. Once everyone is bare, there's no chance of anyone concealing anything, hence, less judgment and no need for assuming pretentious attitudes. Everyone is naturally exactly "who they are."