What does a crew of 20-something skateboarders have in common with a large group of seasoned, exuberant travelers in their 60s? Normally you'd think "nothing at all," but in this case, it's a giant luxury cruise liner through the Mediterranean. A crew of skaters from all over the world boarded a ship in Italy with uncertain expectations, and made their way through Greece, Bulgaria, Romania and Turkey on a mission to shred new spots.