Boulogne-sur-Mer to Étretat: Ultimate Road Trip Guide

Did you know that the D940 coastal road between Boulogne-sur-Mer and Étretat traces the edge of the second-largest tidal range in Europe? The English Channel here can retreat over 5 kilometers at low tide, revealing ancient forests and shipwrecks.

This roughly 120-kilometer journey takes about 1 hour 45 minutes of pure driving without stops, but you'll want to stretch it across a full day. The route meanders through the Parc Naturel Régional des Caps et Marais d'Opale, offering clifftop vistas and chalk-white beaches. For tips on spotting spontaneous detours, see our guide on how to find the best stops and hidden gems between cities.

Most of the drive follows the D940 and D940E, a well-maintained two-lane road that hugs the coastline. Tolls are absent on this route. Fuel stations cluster around Boulogne-sur-Mer, Le Touquet, and near Étretat, but the middle stretch between Montreuil and Fécamp has limited options.

• Estimated driving time: 1h45 non-stop, but plan 4–6 hours with stops.
• Fuel costs: Roughly €15–20 for a standard car (60km range at €1.80/L).
• Road quality: Mostly smooth asphalt, but watch for potholes near farm crossings.

The geography shifts from the fortified port of Boulogne-sur-Mer to the sandy dunes of Le Touquet, then dramatic chalk cliffs. The UNESCO-listed Belfry of Boulogne-sur-Mer (a short detour) marks the start, and Étretat's cliffs are part of the Alabaster Coast natural region.

• Best natural stops: Cap Gris-Nez (views of England), Baie de Somme (bird sanctuary), and the chalk archways of Étretat.
• Local goods: Maroilles cheese (from nearby Thiérache), cider from Pays de Caux, and sea salt from Guérande sold at roadside stalls.
• Hidden off-route spots: The ruined Abbaye de Valloires (5 km inland from Le Touquet) and the silent village of Sainte-Catherine (3 km from D940 near Fécamp).

For a deeper dive into spontaneous detours, refer to our article on how to find the best stops and hidden gems between cities.

Roads are well-lit near towns but dark in rural sections. Speed cameras are frequent. Night driving is discouraged due to wildlife crossings. For families, stop at Nausicaá Aquarium in Boulogne or the park of Le Touquet. Pets are welcome on most beaches outside July–August.

• Rest zones: Aire de Wimereux (free parking, picnic tables) and Aire de Sallenelles (toilets, beach access). The best energy nap spot is at Cap d'Antifer (quiet viewpoint).
• Pet-friendly cafes: Café de la Plage in Le Touquet allows dogs; Le Bistrot du Port in Fécamp has water bowls.
• Fatigue tips: Stop every 45 minutes; the drive is scenic but monotonous after Montreuil. Use the A16 toll road (slight detour) if drowsy.

For culinary breaks, try La Sirène in Boulogne (seafood), Le Pêcheur in Le Touquet (moules frites), or La Maison de la Galette in Étretat (crêpes). Weather varies: coastal fog is common mornings; sunsets are best at Étretat beach.