To get to Saint-Martin-de-Vésubie without a car, take bus line 730 from Nice SNCF train station (timetables are available on the Bus d'Azur website and www.alpha-loup.com/pdf/bus.pdf). You can avoid this transfer by taking bus line 746 from Saint-Martin, but it does not run every day.
(S) From Saint-Martin, at the terminus of bus 730, head towards the departmental road that climbs up to the village on the left, passing the post office and, in the bend, the town hall and the Tourist Office.
(1) After passing the large bend, continue straight ahead along the road lined with plane trees. Ignore the road on the right. Cross the bridge over the Boréon.
(2) At the intersection (sign with the coat of arms of Saint-Martin), turn right and follow the GR®52 A along the road.
(3) At the next intersection, turn left, leaving the GR® for a moment. Continue straight ahead to rejoin the GR®. Follow it until you reach the road again, after passing the water reservoirs on your left.
(4) Continue left towards La Colmiane station. Pass the altitude 1501 and continue along the GR® on the road until you reach an antenna.
(5) At the station exit, below the antenna and after the car park, take the path that descends to the left (GR®). Continue along a wide path, then a road until you reach an intersection after a campsite on your right.
(6) Turn left and continue straight ahead, following the GR® to Saint-Dalmas. This first transition stage ends at the "Les Marmottes" lodge, before starting the GR®52 (E).