Jeff Bezos’ $AU727-Million Yacht Hits the Open Ocean for the First Time Jeff Bezos’ giant 417-foot long sailing yacht stretched its legs on the open ocean this week, still completely free of a coating of eggs Rotterdam residents once promised the world’s largest sailing vessel. Yacht builders Oceanco referred to the $US500 ($AU727)-million sailing yacht by its internal serial name — Y721 — during its yearslong development and manufacturing process. The vessel can now be called by the name granted to it by its mega-rich owner: the Koru. A Koru is a M?ori symbol representing the spiral of an unfurling...