Mulhouse to Portsmouth Road Trip Guide: Scenic France-UK Route

The route from Mulhouse (47.7511° N, 7.3430° E) to Portsmouth (50.8198° N, 1.0880° W) spans roughly 700 km (435 miles) and crosses three countries: France, England via the Channel Tunnel. A historical tidbit: the stretch through the Vosges mountains was once a Roman road connecting Argentoratum (Strasbourg) to the Rhine.

Driving time typically ranges 8-10 hours excluding breaks. Key highways include the A36 (Mulhouse to Besançon), A31/E21 (towards Nancy), A4/E50 (towards Reims), and A16/E402 towards Calais. After the Channel Tunnel (Eurotunnel) Shuttle crossing, the M20/A2/M25/A3/M27 takes you to Portsmouth.

Geographical shifts: Start in the Upper Rhine Plain, then ascend the Vosges hills (max 800m). After the Saône valley, the landscape flattens to the limestone plateaus of Champagne. North of Reims, it becomes rolling hills until the chalk cliffs near Calais. The English side features Kent's green hills and the South Downs before Portsmouth.

UNESCO World Heritage Sites: The route passes near three: Reims Cathedral (A4 exit 22, 15 min detour), the Palace of Tau in Reims, and the Roman monuments of Orange (off-route but mentioned for completeness). In the UK, the city of Bath is 2h detour, but closer to Portsmouth is the Stonehenge (A303, 1h detour).

• Scenic sunset spots: The viewpoint at Mont Saint-Éloi (near Arras, A16 exit 15) offers a panorama of the Doullens plains. In Kent, the White Cliffs of Canterbury (A2 exit 7) are stunning at dusk.
• Local crafts: In the Vosges, buy Munster cheese at roadside fermes-auberges. Near Reims, look for biscuit roses de Reims at specialty shops. In Kent, try Kentish ale at microbreweries near Ashford.
• Roadside markets: The Saturday market in Colmar (15 min detour from A36) offers fresh produce and Alsatian wines. The Rue de l’Horloge in Calais holds a Friday fish market.

Road quality: French motorways are excellent, with smooth asphalt and good lighting at toll booths. Rural sections near the Vosges have unlit stretches; use high beams cautiously. UK motorways are well-maintained but have variable speed limits and frequent average speed cameras.

Safety tips: In foggy conditions near the Somme (A16), reduce speed and use fog lights. Keep an emergency kit with reflective vest, warning triangle, and first aid as required by French law. UK requires a breathalyzer (though not enforced) and insurance documents. Children under 12 must use appropriate car seats.

Family stops: The Cité de l'Automobile in Mulhouse (exit 23 A36) is a must for car enthusiasts. Near Reims, the Parc de la Patte d’Oie has playgrounds and a lake. For Disney fans, a detour to Disneyland Paris (A4 exit 14) adds 90 min, but worth it for kids. In the UK, the Kent Downs country park near Folkestone offers walking trails.

• Pet-friendly stops: The rest area Aire de Réchicourt-la-Petite (A31) has a designated dog walking zone. In the UK, services at Maidstone (M20) have pet-friendly seating at Costa Coffee. Always carry water and poop bags.
• Fatigue management: Plan rest every 2 hours. Safe nap spots: Aire de la Moselle (A31) with quiet parking bays; Folkestone services (M20) have a 24h lounge. Avoid sleeping in unlit areas. Use the how to find the best stops and hidden gems between cities guide to locate safe rest areas.

Hidden off-route spots: At 3 km from A31 exit 5, the village of Montigny-lès-Metz has a prehistoric alignment of menhirs. Near Reims, the abandoned Fort de la Pompelle (A4 exit 22, 5 min detour) offers WWI bunkers. In Kent, the village of Wye (A28, 2 km from A2) has a medieval church and a 16th-century pub.

Culinary infrastructure: Traditional bouchons in Lyon? No, but along this route you'll find: in Alsace, try tarte flambée at Maison de la Tarte Flambée (A36 exit 15). Near Reims, Restaurant Le Foch (14 rue Foch, Reims) offers authentic Champagne-based cuisine. In Calais, Le Channel restaurant serves seafood with a view of the port.

Fuel efficiency breakdown: The flatter sections through Alsace and Champagne allow better mileage (approx 6.5 L/100km for a petrol car). The climb through the Vosges (e.g., Col de Saverne) can increase consumption to 8 L/100km. Total fuel cost estimate: €80-€110 (petrol) or €60-€85 (diesel).

Fuel stations are abundant along the A36, A31, and A4, but note a 40km stretch on the A31 between Langres and Chaumont with limited services. Always fill up near Metz or Reims before crossing into the UK where fuel is pricier.

• Recommended stops: Besançon (A36 exit 3), Reims (A4 exit 22), Calais (A16 exit 13).
• Tolls: The majority of French motorways are tolled. Total toll cost about €55-€65 from Mulhouse to Calais. Carry a credit card; some booths are cashless.
• Eurotunnel check-in: Arrive 30 min before departure; booking in advance saves £20-£30 per vehicle.

Route alternatives: Consider the A5/E54 from the A31 to avoid Reims traffic, adding 20 km but often faster. Also, the A26/E15 from Reims to Calais is an alternative to the A16, with similar distances.

Documentation: Bring passport, driver's license, vehicle registration, and green card insurance. For the UK, a GB sticker (or UK sticker) is required if your plate doesn't have the Euro symbol.