The lac Blanc (White lake) sits at an altitude of 3,461 ft (1,055 m) near the town of Orbey. It is hidden at the bottom of a natural glacial cirque and dominated by a fortress-shaped rock called Hans Castle. Many legends are attached to it. The devil would have locked up a young girl there. To take her away from her lover, he destroyed the castle and hid it at the bottom of the lake, which turned black. Only a pure heart would see its reflection. After years of searching, his lover saw the castle and the girl at the bottom of the lake. He freed her, and the dark water became crystal clear.