Lakes Thun and Brienz are located in the idyllic Bernese Oberland. The Aare river flows from Lake Brienz into Lake Thun, before exiting the Bernese Oberland in the town of Thun, at the north-western end of the lake. It then continues in the direction of Bern. The two lakes are surrounded by some exciting excursion destinations: the Stockhorn, Niesen, Niederhorn, Augstmatthorn and Brienzer Rothorn mountains. When the thermal current builds, a constant wind from Thun flows from the west towards Interlaken. And once the Föhn – a hot southerly wind on the northern slopes of the Alps – arrives in the mountains, whitecaps appear on Lakes Thun and Brienz. The location of these two lake provides the Bernese Oberland with two wind-resistant expanses of water which are ideal for sailing.