Can anyone offer some nice fly-in campsites... along with the features
and accessibility?


Madeline Island. In Lake Superior. Nothing but a picnic spot, though you could
camp primitive. I'm told there's a diner a reasonable walk away, and they'll
loan you a bicycle. One resort hotel, and a ferry to the mainland. Not much
else, and you'd have to fly (it's really an island!) to nearby Ashland, Wi for
fuel. But in autumn it's worth it for the fall colors and locally-grown
apples.

http://www.airnav.com/airport/4R5

The flight instructors at my old school used to take students there because it
was a good long cross-country and a lovely day's recreation before coming back.