View of Lake Brienz

Swimming in Lake Brienz
The clear but often cold Lake Brienz offers only a few wild bathing spots due to the steep slopes, but is considered the cleanest lake in Switzerland. There are four lidos spread around the lake. These are the Niederried outdoor pool, the Bönigen lido, the Iseltwald lido and the Brienz lido. An overview of the four lidos can be found here: «Lake Brienz lidos». If you need warmer temperatures for your bathing fun, the nearby Burgseeli in Ringgenberg is recommended.
Text / Source: Schweizersee.ch
schweizersee.ch/brienzersee

Lake Brienz
Lake Brienz is located in the Bernese Oberland between the communities of Interlaken in the west and Brienz in the east. The lake area is located in the communities of Ringgenberg, Niederried, Oberried and Brienz on the northern shore of the lake and Interlaken, Bönigen and Iseltwald on the southern shore. The large Bernese Oberland lake is fed by many mountain streams, mainly by the Aare in the east and the Lütschine in the west. At Interlaken, the Aare flows out of the turquoise-blue Lake Brienz and flows back into Lake Thun a little later in the Weissenau area. At normal water levels, the lake is at an altitude of 564 meters above sea level.
With an area of almost 30 square kilometers, Lake Brienz is the eleventh largest lake in Switzerland and the third largest in the canton of Bern after Lake Thun and Lake Biel. It stretches 14km in an east-west direction and is almost three kilometers wide. There is only one island in Lake Brienz. The snail island - dialect: Schnäggeninseli - is located around 250m from the shore near Iseltwald. The circumference of Lake Brienz is almost 35km. The annual Lake Brienz Run circles the lake along the shore.
Text / Source: Schweizersee.ch
schweizersee.ch/brienzersee

When the sun shares the sky with the clouds, Lake Brienz shines in a Caribbean turquoise. This sight and the accompanying landscape make every traveler pause and elicit an astonished "ahhh".
In the best weather, you can see as far as Interlaken