The popular tourist region of Lake Constance (German: Bodensee) spans three countries. It is the third biggest lake in Central Europe and is on the path of the Rhine River. The lake shore is shared between the German federal-states Baden-Württemberg and Bavaria, the Austria federal-state Vorarlberg and Eastern Switzerland.
Most of the German part of Lake Constance is covered in Bodensee Region.
There are eleven islands of which Reichenau is the biggest.
All three nations have developed a specific culture around their part of the shore.
The lake is divided into three main parts: the Obersee ("upper lake"), which covers the main area, the Untersee ("lower lake") in the south-west and the Seerhein, which is the short part that connects the first two bodies of water near Konstanz. The part of the Obersee in the north-west is referred to as Überlinger See and the ferry link between Konstanz and Meersburg approximately defines its boundary. The Rhine feeds into the lake at the south-eastern end and exits in the west. It is the third largest freshwater lake in Europe after Lake Balaton and Lake Geneva. It is 63km long and 14km wide and the deepest part is at 252m.
Lake Constance is also notable for the boundaries not being agreed upon by the three countries having a shoreline on it. In practice this has few effects for the traveler because none of the countries in question grants ius soli citizenship and questions of migration are mostly irrelevant due to the Schengen Agreement. Furthermore Germany, Austria and Switzerland routinely cooperate in cross-border law enforcement and disaster relief.
Its German name, Bodensee, derives from the town of Bodman, whereas the international name is derived from the city of Konstanz and was adopted mainly by the Roman-Catholic world after the Council of Constance.
The lake is also a major source of drinking water for the surrounding regions.
German is spoken all the way around the lake. In the Swiss towns, people normally speak the Swiss German dialect but will be able to understand and speak high German. Most people in this area speak some English, especially young people and people working in the tourist industry.
The closest commercial airport is in Friedrichshafen (IATA: FDH).
Other relevant airports within about 2 hours' drive of the lake are in Memmingen (IATA: FMM), Stuttgart (IATA: STR), Munich (IATA: MUC), Zurich (IATA: ZRH) and Basel (IATA: EAP).
There are trains going around the lake and stopping in most cities of interest. The most important junctions are at Radolfzell, Konstanz, Friedrichshafen, Lindau, Rorschach, Romanshorn and Kreuzlingen. (None of these stations are big; they are simply where various train lines meet.)
A joint webpage (dead link: January 2023) offers an overview of the boat and ferry routes. Check the ship schedule (dead link: January 2023) (valid in 2016) for details on pricing, available connections, different timetables according to the season and more.
The major boat/ferry operators are:
The fastest boat crossings are:
There are also more relaxed crossings between many cities and towns on the lake, giving you more time for a beer, meal, or even a nap out on the sunny top deck. These boats normally only run from April until October and don't run at night.
A particularly nice time to be out on the lake is on a sunny day when there is a good view of the Alps.
All cities and many towns on the Bodensee are serviced by the three national railroads of Germany, Austria and Switzerland. The best service (amount of time spent between stops) is by far better in Germany and Austria than on the Swiss side. Lindau, Friedrichshafen, Konstanz and Bregenz all offer major connections further on into Germany, Austria and Switzerland.
Consider the Euregio Bodensee day ticket which offers you unlimited rides on trains/buses around Lake Constance and discounts on specific ferries.
The infrastructure for bicycles is well maintained and cycling along the lake is easy since it is mostly flat. The Bodensee-Radweg ("Lake Constance cycle path") is a 260km long cycle path around the lake and many parts are separated from the other traffic. Shorter options for cycling around the lake are possible by skipping the Untersee (reducing the route by about 75km) or by taking the ferry to skip the Überlinger See (reducing the route by about 65km).
In summer it can get very crowded especially when you want to take your bicycle on the train. You should plan for alternative train connections in case there is no space left.
The Bodensee and its shores are very beautiful in a quiet, cultivated way. The views are serene, not spectacular. If you want dramatic scenery, drive a couple of kilometers south into Switzerland or south-west to Upper Bavaria (Allgaeu) and Austria, (Vorarlberg) and visit the Alps. The area sits in a kind of bowl and tends to be very foggy in the winter months.
Typical wines from the region are Müller-Thurgau (white wine), Weißburgunder (white wine) and Spätburgunder (red wine) among others.