Zernez is a village and a municipality in the Engiadina Bassa/Val Müstair Region in the Swiss canton of Graubünden.

[3] Zernez is a major node in the regional road network, with roads leading into the Upper Engadine and towards Italy, the Lower Engadine and towards Austria, over the Fuorn Pass into the Val Mustair and over the Flüela Pass.

Zernez is the center for visitors of the Swiss National Park (Romansh: Parc Naziunal).

[5] Before the merger Zernez had an area, (as of the 2004/09 survey) of 203.91 square kilometers (78.73 sq mi).

[6] Until 2017 the municipality was located in the Sur Tasna sub-district of the Inn district, after 2017 it was part of the Engiadina Bassa/Val Müstair Region.

Lai da Ova Spin is a compensation reservoir on the river Spöl.

It is located in the upper areas of the Lower Engadine valley (Romansh: Engiadina Bassa).

It is located at an elevation of 1,473 m (4,833 ft) and is connected to the railway network of the Rhätische Bahn.

The wettest month is August during which time Zernez receives an average of 103 mm (4.1 in) of precipitation.

The driest month of the year is February with an average of 37 mm (1.5 in) of precipitation over 11.4 days.

[6] In 2014 the crime rate, of the over 200 crimes listed in the Swiss Criminal Code (running from murder, robbery and assault to accepting bribes and election fraud), in Zernez was 52 per thousand residents, slightly lower than the national average (64.6 per thousand).

When the Protestant Reformation entered Zernez in 1553, the church was stripped of all the statues and paintings.

During the Bündner Wirren (or Confusion of the Leagues) it was reinforced and a regiment from Schauenstein was stationed there.

All four are located on the Bever–Scuol-Tarasp line and between them have with regular service to Disentis/Mustér, St. Moritz, Landquart, Scuol-Tarasp, and Pontresina.