← Marathon du Val de Somme·1 night

Baie de Somme: A Night on the Estuary

A night on the Somme estuary, a walled medieval town facing tidal mudflats and salt meadows, reached without a car by train and a connecting heritage railway.

Duration1 night
TransitDirect TER to Noyelles-sur-Mer, around 32-35 minutes, then the CFBS heritage railway or a Trans 80 bus onward
DepartsAmiens station

After the Marathon du Val de Somme: Baie de Somme

The Route: Amiens → Noyelles-sur-Mer → Saint-Valery-sur-Somme → Le Crotoy → Amiens Logistics: Direct TER train to Noyelles-sur-Mer, then the CFBS heritage railway or a Trans 80 bus for the final leg into either coastal town. Marathon Month: October Duration: 1 night

Amiens ──(TER, ~32-35 mins direct)──> Noyelles-sur-Mer ──(CFBS heritage train or Trans 80 bus)──> Saint-Valery-sur-Somme / Le Crotoy
                                                                                                              │
Amiens ◄──(TER, same line, reverse)──── Noyelles-sur-Mer ◄──(CFBS or bus, reverse)───────────────────────────┘

The Marathon du Val de Somme spends its entire 42.195 km on the river's edge, but the towpath it runs is upstream, inland, well before the Somme opens out into the estuary it eventually becomes. The bay itself, one of the largest and least developed tidal estuaries on the Channel coast, is a different landscape from anything the race passes through: open mudflats, salt meadow, and the kind of horizon a river towpath in Amiens never offers. A single night here after the race is enough to see it properly without adding a second full travel day either side.

October at the Baie de Somme sits outside the summer crowds without sitting outside the season entirely. The Chemin de Fer de la Baie de Somme's Terre & Mer heritage route, the steam and vintage-diesel line connecting Saint-Valery-sur-Somme and Le Crotoy across the bay, runs daily from May through November, so early October is comfortably inside its operating window. The park's two shorter seasonal routes close by mid-September, so this is the one to plan around specifically, not the network as a whole. The Parc du Marquenterre bird reserve further along the coast is also open through October, daily from 10:00 to 18:00, and autumn is a working part of its calendar rather than an off-season afterthought: migratory species pass through the reserve on their way south at exactly this time of year. Check the current season calendar before planning a visit around a particular species.

The direct TER from Amiens to Noyelles-sur-Mer takes around 32 to 35 minutes, roughly 14 services a day. Noyelles-sur-Mer is the transfer point rather than the destination: from there, the CFBS heritage railway connects onward to Saint-Valery-sur-Somme and Le Crotoy, or the Trans 80 regional bus network covers the same corridor, line 706 toward Saint-Valery and Cayeux-sur-Mer, line 709 toward Le Crotoy. Check the current CFBS and Trans 80 timetables before travelling, since heritage-line and rural-bus schedules both shift by season, and a taxi from Noyelles-sur-Mer is a reasonable fallback if a connection doesn't line up.

Night One: Saint-Valery-sur-Somme

Saint-Valery-sur-Somme is a walled town on the southern edge of the bay with an old story attached to it: William, Duke of Normandy, mustered his invasion fleet here in 1066 before crossing to England, and the town's medieval upper quarter, the Ville Haute, still sits above the harbour behind its original ramparts. The lower town's quays run flat and paved along the water, an easy, low-effort walk with the tide and the estuary's colour changing through the day rather than any single fixed view; there is nowhere in particular this walk needs to end, which suits legs that would rather stop and sit than commit to a set distance.

The Ville Haute itself involves some real incline, cobbled streets rising from the harbour to the old ramparts and the Chapelle des Marins, so treat that as the optional half of the visit rather than the default, and save it for whichever part of the day the legs feel more willing. Parc du Marquenterre, the bird reserve, sits a short drive or taxi ride further north along the coast and is worth the detour for anyone with an afternoon to spare and an interest in the bay's autumn migration season.

Where to stay: Hôtel du Port et des Bains, a Logis three-star on the harbour front, keeps the flat quayside walk directly outside the door. Relais Guillaume de Normandy, named for the same 1066 departure and set right beside the Somme itself, is the other well-placed central option.

Where to eat: For moules-frites in the more informal setting of Le Crotoy across the bay, Restaurant du Port has long served the dish that defines this coast, mussels from the bay itself with the classic cream, white wine or curry preparations. Book ahead on a weekend evening; prices vary by season, so use any figure as a guide only.

Getting Home

Return to Noyelles-sur-Mer by the same heritage train or bus connection, then the direct TER back to Amiens, around 32 to 35 minutes. Amiens itself has no major international airport, so the realistic gateway for most international visitors is Paris Charles de Gaulle (CDG), reached by continuing on from Amiens station to Paris Nord (as fast as 1h05 by direct TER) and then the RER B onward to the airport. Build both legs into the day's schedule rather than assuming a seamless connection between them.