Cats that are playful and curious can expend unwanted energy by exploring. Cats also enjoy going up and down the ramps, wheels, climbing levels, scratching posts, etc. It is a safe way to be outdoors and be able to watch the birds, and squirrels, breathe fresh air, and be in the sunshine.
I have attached a link to do it your self outdoor enclosure that is maintenance-free.
Professional Pet Sitting Services offered in the Upper to Mid-Pinellas County Area