Head to Obernai on the fifth day of your trip. This charming town is known for its half-timbered houses and medieval ramparts. Visit the Market Square and try some local delicacies, such as gingerbread and kougelhopf. Explore the Mont Sainte-Odile, a nearby mountain with a beautiful abbey and panoramic views of the Alsace region. End the day with a visit to a local winery for a tasting.