(S/E) From the Millefonts car park (marker 32), approximately 5 km north of Saint-Dalmas, take theGR®®52(the stage from Saint-Dalmas to Le Boréon) to the Col de Veillos (marker 83).
(1) Continue to the right along theGR®®52. Further on, pass close to
(2) Lac Rond, Lac Long and Lac Gros. Arrive at the Col du Barn (marker 84), the entrance to the core zone of the Mercantour National Park
(3) Leave theGR®®52, which descends into the Barn valley towards the Collet cattle tracks, and head straight on, south-east towards the summit of Mont Pépoiri (2,674m). The path is well marked with cairns.
(4) From the summit of Mont Pépoiri, descend off-trail down the southern slope, heading south-southeast, to reach a pass and then Mont Pétoumier (2,604m).
(5) Stunning views over the village of Saint-Dalmas. Descend back to the pass heading north-west and, further on, turn west to reach Lac d’En Veillos (often dry in summer).
(6) Continue westwards and, shortly afterwards, head west-south-west to rejoin theGR®®52route and the Millefonts car park (S/E).