Almost every practical piece of writing about this region's interior ends on the same line: rent a car. It is reasonable advice and, for half of Provence, unavoidable. But it gets repeated so automatically that it hides the opposite fact, which is also true.
01 The line that makes the trip possible
The Nice to Digne-les-Bains line is 151 kilometres long, metre gauge, and serves some thirty towns and villages. It is run by the Chemins de fer de Provence, not the national network, and it operates as a regular service, not a tourist train: the first departure leaves Nice just before seven in the morning, and there are around five runs a day in each direction. The full journey takes about three and a half hours.
The route matters as much as the timetable. The line climbs the Var valley and then the upper Verdon, that is, it goes in where a road would go in, without asking you to watch the road. The perched villages seen from the seat are the same landscape a driver misses.
02 Why Digne has only one train
Digne-les-Bains once had two rail approaches. The standard-gauge one, linking it to the Marseille–Briançon line at Château-Arnoux-Saint-Auban, lost regular passenger service in March 1972 and closed entirely in September 1989, with the end of the Alpazur link between Geneva and Nice.
What survived was the metre gauge. Which is to say that the only way to reach Digne by train today is the slow line, the Pignes, the one that looked like the picturesque option. That detail explains why such a populous region has such a poorly railed interior: it is not that it never had one, it is that it was dismantled.
The scenic line is not an alternative to the regular train. At Digne it is the train that is left.
03 The second line climbs to 800 metres
The other way in also leaves Nice and climbs the Roya valley to Tende, 71 kilometres in about two hours. The line opened in 1928 and continues to Cuneo, over in Italy. It is standard gauge and run by the regional network.
It has one feature that is useful for the car-free traveller: from May to October, the train leaving Nice at 9:32 carries a guide who talks through the valley along the way. Returns from Tende leave in the early and mid afternoon, which allows a full day out without sleeping up there.
04 Where to sleep for this to work
This trip rests on two or three bases, not on a linear route. Nice is the obvious one because both mountain lines start there, and it is also linked to the rest of the coast by frequent services.
For the western half, Aix-en-Provence and Avignon work better. Both are walkable cities, both have frequent regional links to each other and to Marseille, and both allow three or four days without boarding anything but a local train. It is the part of the trip that needs least planning.
The arrangement that works best over seven nights is simple: three nights in Nice for the two mountain lines, three in Aix or Avignon for the west, and one spare. The spare is not a luxury: it is the reserve for the day a connection does not line up.
05 What you will not see, and had better accept
It has to be said plainly. The Valensole plateau, the Verdon gorges and the interior of the Alpilles have no rail service, and the public transport that does reach them is thin, seasonal and designed for residents rather than day trips.
Anyone travelling car-free for the lavender will fall short. That is the real limitation of this approach and goodwill will not fix it: either you book an organised excursion from a city, or you rent a car for those two specific days, or you let it go.
In exchange you gain something the car does not give. On these two lines the journey is not the price of the destination: it is part of it. Three and a half hours climbing a valley with stops in villages of two hundred people is precisely the kind of experience the road turns into transit.
Dsdugan California, for the traveller who swaps the coast road for the dry side of the range.
LordDimwit Queensland, for the traveller who swaps the Cairns catamaran for a cay on the southern reef.
Marklchaves