n55

 If you haven’t run across N55, they are an odd somewhat-anarchistic art collective based in Denmark.  Among other things, they work on small DIY floating structures like MICROISLAND, FLOATING PLATFORM, MODULAR BOAT, and SMALL FISHFARM.  Their most recent project is a walking house.  While not the most efficient way to implement dynamic geography, it has (like most of their projects) a certain artistic flair: