I take the Lad I look after, who is in a Wheelchair, about 8 miles to a Big Park with a lake and plenty of secluded paths, on a regular basis, not to provide exercise for him, although I get plenty, but to get him out of his room, and get some fresh air in his lungs, and also to benefit his Mental Health, I think that is more important than exercise for him, when we were stuck in his House the first time round, he was climbing the walls and became really aggressive !!!