As far as visiting, I imagine those who have family or friends stationed at one of them, they visit occasionally.
As for camping on the bases, I doubt it. You can’t just go on a base without good reason to be there.
Fortunately, we have these Road Trip threads and can learn a little about each one. I enjoy them, too, as do others.
AHHHHhhhh! I always thought it was a Freeper Vet get together / actual road trip... I’m a disabled vet and can get on posts... I thought this was a Freeper Veteran meet up at some bases. Most Bases actually have RV campgrounds. I camped at Vandenberg Western Space Port last year for a rocket launch. It was pretty cool. It was my first time being on a base in 20 years. First time I felt safe in 20 years.