unified ski and hiking area across another mountain range. Lenk is situated at the southern end of the Obersimmental, the upper part of the Simmental, which again joins the Kander of the Kandertal just south of Spiez at the southern shore of Lake Thun after the Kander flows through the Frutigtal. Above Spiez rises the Niesen, offering a wide view over the Bernese part of the Swiss Plateau to the northwest. Zweisimmen, still part of the Obersimmental, lies south of Boltigen, the junction of the upper and lower parts of the Simmental. From Erlenbach in the Niedersimmental, the lower valley of the Simme, one can access the Stockhorn by cable cars to the west, the one summit of the Bernese Oberland with the probably most unobstructive view over the Bernese Lowlands and Thun. Not far from Erlenbach, one can access the Diemtigtal to the south with the Gsür to its very south end, also rising directly above Adelboden. Zweisimmen also connects to Saanen and Gstaad via the small pass of Saanenmöser, with the Louwene Valley and the upper valley of the Saane south of Gstaad. After flowing northwards, in Saanen the Saane turns to the west, firstly, in order to become La Sarine in the now French-speaking canton of Vaud (VD), and secondly, opens a railway connection to Montreux at the eastern shore of Lake Geneva. The Jaun Pass, a road pass, connects the Simmental near Reidenbach with La Gruyère, the valley when La Sarine turns north again, and the town of Bulle in the canton of Fribourg (FR), west of the Lac de la Gruyère. North of Spiez, right across Lake Thun, on its northern shore, lies the Niederhorn, the south end of the northernmost mountain range of significant elevation of the Bernese Oberland, with the Gemmenalphorn and the Hohgant at the other end, separated by a small valley from the Harder on its southeast. At the west end of Lake Thun, at the outlet of the river Aare, lies the town of Thun, which already belongs to the Swiss Plateau, not far from Bern to the northwest. Administrative division Since 2010, the Bernese Oberland covers one of five administrative regions of the canton of Bern (called ) and consists of four administrative districts with 80 municipalities: Frutigen-Niedersimmental (administrative district) Interlaken-Oberhasli (administrative district) Obersimmental-Saanen (administrative district) Thun (administrative district) Before 2010, the Oberland had consisted of the following districts: