Yachts and private islands both have their downsides. Yachts can feel, well, a little cramped, unless you pony up for the Abramovich size. And private islands are loads of trouble: since they don’t move, they are either too hard to get to or too easy for outsiders to visit.

But what about combining the two? A Yisland, or a Islacht: a floating, fully loaded, man-made island that motors through the ocean.