Question: Krystkongres is usually held by members of the students who live near what body of water?
Sentence (from "Frisia"): Frisia (West Frisian: "Fryslân" ; Dutch: "Friesland" ) is a coastal region along the southeastern corner of the North Sea in what today is mostly a large part of the Netherlands, including modern Friesland, and smaller parts of northern Germany.
Relevant evidence: Yes