When all students are wearing a life jacket, the engine is started and the Dorestat 1 sails out of the harbor. “Of course they didn’t have that engine in the past, so they rowed back then. Who wants to try that?” The whole group raises a hand. “Okay, come sit here. That’s what I do it for”, says Kees with untiring enthusiasm. “One, two, three and go. And go… Yes, that’s right!”