Saint-Malo to Quimper Road Trip: Best Stops and Hidden Gems

The D137 highway connecting Saint-Malo to Quimper traces a 144-mile (232 km) path through the heart of Brittany, a region steeped in Celtic lore and maritime heritage. This route, largely following the N12 and N165, is a journey through time, from the walled corsair city of Saint-Malo to the medieval cathedral town of Quimper.

A little-known fact: the road passes within 10 miles of the Carnac alignments, a Neolithic site older than Stonehenge, yet most drivers speed by without a glance. The drive typically takes 2 hours 45 minutes without stops, but the real magic lies in detours.

• Total distance: 144 miles (232 km)
• Estimated driving time: 2h45
• Main highways: N12, N165

Fuel stations along the N12 and N165 are plentiful, with major brands like Total and Shell appearing every 20 miles. Expect prices around €1.85 per liter for diesel (2024).

The roads are well-maintained, with the N165 being a dual carriageway for most of its length. Tolls are minimal; only a short section near Rennes requires payment (€2.10).

• Best fuel stop: Leclerc at Loudéac (often cheapest)
• Rest areas: Aire de Brocéliande (playground, picnic tables)
• Charging stations: Fast chargers available at Rennes and Pontivy

Parking in Quimper's historic center is challenging; use the P1 Parking Q-Park (€2 per hour). Saint-Malo offers secure parking near the ramparts (Parking Jean Jaurès, €12/day).

Rental cars from major agencies exist at both ends. Consider a manual transmission to save money.

The N165 has a speed limit of 110 km/h, reduced to 90 km/h in rain. Radars are frequent; keep cruise control at 108 km/h.

Wildlife warning: deer crossings near forests, especially at dusk. The route is generally safe, but narrow roads in town centers require caution.

• Emergency number: 112
• Nearest hospital: Rennes (CHU Pontchaillou) and Quimper (Centre Hospitalier)
• Breakdown service: SOS Autoroutes (3656)

Family-friendly stops:

• Cobhac Aqua Park (Pool, slides, near Loudéac)
• Parc de la Briqueterie (Dinard, dinosaur models)
• Parc Animalier de la Bourbansais (zoo on route, exit 25 on N12)

Fatigue management: The drive is short enough for a single meal stop. Ideal rest zones:

• Aire de la Rance (picnic tables, clean WC)
• Aire du Mené (playground for kids)
• Aire de Lorient (modern facilities)

Pet-friendly framework: Most rest areas allow dogs on leash. Accommodation: Campanile Rennes (pet fee €10). Dinan's Castle Hotel welcomes dogs.

Hidden off-route spots:

• Château de la Hunaudaye (11th-century fortress, 5 miles off N12)
• Chapelle Sainte-Anne-d'Auray (major pilgrimage site, 15 miles south of Pontivy)
• Alignements du Vieux Moulin (smaller Carnac-like stones near Baud)

Leaving Saint-Malo, the route passes through the marshlands of the Rance estuary, a haven for birdwatchers. The landscape transitions to rolling farmland dotted with granite farmhouses.

• Forest of Paimpont (Brocéliande legend): 10-mile detour from N12 near Mauron
• Lake Guerlédan: artificial lake, ideal for kayaking (exit at Pontivy)
• Monts d'Arrée: rugged moorlands near Quimper, especially scenic at sunset

Local commerce thrives in medium-sized towns. Dinan's Thursday market sells artisanal cider and handmade lace. Pontivy's covered market is excellent for local cheeses (especially Tomme aux Algues).

For how to find the best stops and hidden gems between cities, check Wayro's guide.

UNESCO World Heritage Sites near the route:

• Mont Saint-Michel (30 miles north of Saint-Malo)
• Château de Comper (part of Brocéliande forest)
• Quimper's Cathedral (part of chemins de Saint-Jacques)