Access from Toulouse: follow the D117 to the town of Mane. Take the D13 towards Arbas.
At the entrance to Arbas, take Rue de Planque, not shown on Maps, towards Ferme d'Oulan Bat. Continue on the road, which then becomes a path, until you reach a small clearing where you can park.
(S/E) Take the yellow-marked path on the left bank of the Ruisseau de la Goute de Pet d'Ase. Continue to reach the Ravin de Goute de Goutoly.
(1) Follow the markings and signs to the Planque waterfall.
(2) Retrace your steps to return to the car park in the clearing (S/E).