A lake linked by a permanent issue of water flowing underground

Lases Lake is the twin of that of the Valley with which it is linked by a permanent issue of water flowing underground. It has an elongated shape: wider at the northern end, with an attractive reed bed between the two beaches nearer the town, and narrower to the south where the reeds and marches are enclosed within a gorge. This is the most interesting stretch, because it is the habitat of many rare species of flora and fauna, now protected by the constitution of a provincial biotope.