Must... work... off... lunch...: Paying for meals bathed in butter along Normandy's country roads
While the rest of the world has turned its back on clarified butter, Normandy has not, and for this it is deserving of high praise. This means, however, that if you're going to travel along the coast of Normandy, you may wish to consider a high-cardio form of locomotion, especially if you're going to be doing things like eating a sole that took its final swim in sea of clarified butter.
Cross-country skiing would be your best choice, but Normandy has what the French call le climat oceanique, which is just a sophisticated way of saying "British weather." It's prone to cloud cover and rain, and by cloud cover I mean a thick, gooey blanket of light-sucking grey, and by rain I mean an interminable drizzle. There is no snow, but there are roads, and so the logical choice is also a fun one: the bicycle.