Bare is safe. If you're not homophobic, Bear (the human kind) is safe too. If you are homophobic, don't be. They're safe, even if you're straight like me. Bears of the family Ursidae...NOT safe. Avoid those while naked at night.
Oh...and if you're safe from the Ursidae kind of bear, the grass on golf course fairways is FANTASTIC to walk on, so a nude hike on the fairways will be definitely worth it. I have gone on a nude golf course hike at night, mountains, full moon...in bear country. It was very dangerous and I shouldn't have done it alone, but it was wonderful.
Night time is the right time. The local gold course is easy to reach, even when walking the dogs, and a big expanse of open dark lined by trees, with nobody else around. I wish it was easy to get in the fence at the pool, but it's lit some and who knows if they have a camera on it?
Skinny dipping, too, is great without making too much noise. There's hardly any place around me without houses, so I'm not wanting to wake up the natives. Still, after 1 of 2 most everybody is asleep.
I like to camp in State or National Forest rather than a campground, so it's easy to not even worry going in or out of the tent or camper, and usually I can situate my setup so I can be nude during the day, just keeping an ear out for anyone wandering on public land. There are trails, too, that can be hiked almost completely safe from danger of being seen. Just keep a look ahead and listen, because few hike alone and few can refrain from talking. What a great feeling to be completely free in nature!