Lake Zurich (German: Zürichsee, Swiss Standard German pronunciation: [ˈtsyːrɪçˌzeː]; Alemannic German: Zürisee) is a lake in Switzerland, that extends southeast of the city of Zurich. Depending on the context, Lake Zurich or Zürichsee may refer to the entire lake or specifically to the section downstream of the Hurden peninsula and Seedamm causeway (between Pfäffikon and Rapperswil). In the latter case, the upstream part of the lake is called Obersee (lit. 'Upper Lake'), while the lower part is sometimes also referred to as the Lower Lake (unterer Zürichsee), respectively.