[3] The catchment area is composed of criss-crossing fractured valleys with alternating agricultural lands and forests.

The lake and its shores are highly popular for open-air activities such as fishing, bathing, birdwatching, tour skating, canoeing, skiing, and walking.

The present discharge of phosphorus, mostly deriving from three residential areas by the lake, is still too high although it remains controllable.

[3] Aquatic plants includes reed, club-rush, wood club-rush, broadleaf cattail, flowering rush, water hemlock, yellow iris, yellow loosestrife, bittersweet, yellow water-lily, white water-lily, broad-leaved pondweed, red pondweed, whorled water-milfoil, amphibious bistort, water-soldier, frogbit, duckweed, greater bladderwort, and greater duckweed.

[3] The deciduous forest north of the lake and the shallow reeds there is an important biotope for bats, as the area produces a plenitude of insects while offering favourable milieux for hibernation.