The Lake Constance (germ.: Bodensee) is located at the border triangle of Germany, Switzerland and Austria. Due to the Schengen agreements of all European Union memberstates and Switzerland a so-called Schengen-Visa is needed which is valid for all EU memberstates as well as Switzerland. In case, you are not from a Schengen-state and you are from a country needing a visa for entering Schengen-area you can apply for such a Visa (visa regulations) at all embassies of Schengen memberstates. Because the conference will be held in the german part of the Lake Constance area it is recommended to contact a german embassy for visa appliance but is of course not obligatory.
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