Must be a status symbol or something? There was a pond about half again the size of your picture and someone kept a 15-16' boat with probably a 90-100 hp outboard on it for years back home.
Up by Lake Michgian one casino is a boat, its in its own pond, once a year they used to unhook it then hook it back up. some crap about the gaming laws in Indiana. Now the laws have changed so its just a big boat connected to a hotel.