Around the world by sail? That's already been done.
Around the world in 80 days? That's so 19th century.
Around the world on a luxury yacht? That sounds like fun, but it's still pretty 20th century.
Around the world in a modern ship without using a single drop of fuel? Now THAT is the future!
Or is it?
The Turanor PlanetSolar catamaran is right about now crossing the Gulf of Aden on its way to the Red Sea, and nearing the end of its nearly two year, round the world journey.
All without using a single drop of fuel.