Philippe Van der Mersch
Google
Beautiful lake at the city border of Biel city. From city center you can walk to the lake in 10 mins.
Lots of activities at the lake : kayak, bike, swimming, there is even a sand beach. There are also tours of the 3 lakes by boat.
Besides the wonderful scenery, there are several bars with friendly personal and reasonable prices.
Wholeheartedly recommended!