evidence: Lake Constance Cycle Path – three countries at their most beautiful The Lake Constance Cycle Path takes cyclists on a journey spanning around 260 kilometres through Germany, Austria and Switzerland. The route runs all the way around the lake, sticking close to the shore, with a panoramic view of the Alps at every turn. This cycle route around Lake Constance is one of the most popular bike trails in Europe and it doesn't take long to realise why. Cyclists can pedal at a leisurely pace through the stunning countryside setting, revel in the friendly hospitality in all three countries and enjoy the sheer amount of variety on offer along the way. Starting off in Constance, the German leg of the route alone passes well-known towns and magnificent attractions, including the flower-filled island of Mainau, the Monastic Island of Reichenau (a UNESCO World Heritage Site), Meersburg Castle and Lindau. From there, it's on to Bregenz, Rorschach and Stein am Rhein with its delightful Old Town, before the route heads back to Constance.