You will discover varied and sometimes strange biotopes along your way. Depending on the season, you will see the river banks covered with spring snowflakes or with bear's garlic. Bunches of box trees and lean oak trees grow on the rocks above the cliffs, conferring a Mediterranean look to the landscape.

Humans have left their mark in these wild forests throughout history: prehistoric stones with strange signs, ovens to reduce iron ore, limekilns, quarries to exploit ashlars or to make the magnificent fountain basins featured in the villages of the Lake Geneva Region.

Along the way you will discover a quarry where many basins of our region were made. You will also see vestiges of iron ovens and limekilns, as well as an engraved stone in a place called Les Gottettes. Back in Croy, don't miss the ancient public wash houses and fountains.