Early days of autumn, end of September 2013, towards the bridge Corbiere (ballad about 10km round trip). Air temperature: 20-25 ° C water temperature approx. 16 ° c || Information and location: About the area and the Gruyere Lake here: http://www.la-gruyere.ch/en/la-berra-lac-de-la-gruyere.html | About the SUP's rental: Stand Up Paddle Lake of Gruyere | Rental paddle and additional information: http://www.gruyerepaddle.ch/index.php/centre-de-location/situation/