The gorges du Rébenty near Joucou is a wild section of river that loses altitude with remarkable rapidity through the limestone. The gorge is surrounded by forests and meadows. The forest edges are rich in butterfly and lady orchids; the meadows are littered with burnt-tip orchids amongst an array of calcareous grassland flowers. Overhead there are griffon vultures, golden and short-toed eagles.

Further down there is an old quarry that is healed over and the slope beneath high limestone cliffs is full of flowers and butterflies.