Access: from Saint-Paul-en-Forêt, follow the D4 towards Bagnols. At the village exit, take the "Vigne de Maure" road downhill to the right and continue until you reach Chemin de la Tyre, where you turn right to find the dirt car park at the starting point. GPS coordinates of the starting point: 43.559986, 6.68999
(S/E) From the car park, go to the information board at the start of the trail and follow this path downhill until you reach Lac Rioutard and the weir.
(1) From the lake shore, cross the weir and complete the full circuit by following the signposted botanical trail.
(2) Then continue straight ahead to the opposite bank, approaching the trail you took on the way there. Turn right, then right again onto the trail and return to the car park via the same route you took on the way there (S/E).