By bike, the sites you mustn't miss out on are even more accessible. Via the Rhine cycle route EV15, you will visit two places in Alsace that are listed as world heritage sites by UNESCO: Strasbourg - Grande île and Neuf-Brisach, a stronghold built by Vauban, and discover the largest locks in France at Gambsheim and Kembs-Niffer built by Le Corbusier. Via Romea - EV5 - will take you through the lakes of Lorraine and the boat lift at Arzviller to the foot of the 51 Grand Cru vineyards of Alsace. The lock ladder of Valdieu-Lutran and Mulhouse is also an astonishing sight on the EuroVelo 6 route.