I read this thread a while back & have been thinking of it. With a couple of my caches that I have hidden, you could get a wheelchair or motorized scooter there, but the person probably would have to have help with the grab. For example, one of mine is in a park where the earth is packed probably would be easy for a motorized scooter, but the actual cache is in the bushes. Anyone in the scooter could enjoy visiting the park, but probably couldn't get in the bushes to get the cache. Just a thought...maybe there could be an icon for that too.