Lake Constance is called the four-country region: Germany, Austria, Switzerland, and the Principality of Liechtenstein. While the Principality of Liechtenstein does not border the lake, it is close by. Each year an estimated 60 million people visit the area as day visitors with millions more staying for extended stays.

There are a number of rules that govern the diving on Bodensee. The Bodensee-Schifffahrts-Ordnung (BSO) has the most impact on diving. It closes some dive sites in the summer months due to increase boating and shipping activity. Also, Divers with Open Water certifications must dive with a dive center and be accompanied. Some sites are also protected. Diving on these sites is also best as accompanied because of liability and permit issues. After-Work dives are very popular with the local divers.