evidence: Diving in Lake Constance is considered attractive and challenging. Most of the diving areas are located in the northern part of the lake ( [...] The 260 kilometers long Lake Constance circular route, signposted as "Bodensee Rundwanderweg", leads around Lake Constance through the territories of Germany, Austria and Switzerland. It is mainly intended for hiking, cyclists follow the sometimes slightly different managed Lake Constance cycle path [55] [...] Lake Constance is also a hub for long-distance hikers and pilgrims. It has been a crucial reference point of important pilgrimage routes since ancient times: