Three old granite quarries, abandoned in 1980, which naturally filled with water to form beautiful blue ponds, popular with fishermen. Many of the cobblestones of Nantes and Nazaire streets come from this place.
Not a very difficult circuit with beautiful passages on the Gatineaux and Gros Caillou ponds. The starting point can be from the charming port of St Michel chef chef
a Gravel path that bypasses the Etand du Gros Caillou (whose name must have been found by a 5 year old child)
Trail without too much difficulty (in summer, in …