The Christkindelsmärik since 1570 - the oldest still-running Christmas market in France. The market spreads across 12 squares in the UNESCO Grande Île, all cobbled and walkable with a leashed dog. The cathedral square (Place de la Cathédrale) is the iconic photo and a 4-second walk from the Petite France district. Trams accept leashed dogs free.
4-star inside a converted 18th-century ice factory on the Ill river in Petite France. Pets up to 10 kg welcomed (small fee), the riverside rooms have the postcard half-timbered houses view, 5-min walk to the Christkindelsmärik.