Krystkongres is usually held by members of the students who live near what body of water?
Krystkongres The Krystkongres (Christmas-congress) is the annually held congress for members of the Frisian student societies in the Netherlands.
Kantonsschule Zürcher Unterland Kantonsschule Zürcher Unterland (KZU) is a "Langzeit und Kurzzeit-Mittelschule" in Bülach, Switzerland in the Zurich metropolitan area.