Collect the cars and leave Cherbourg-en-Cotentin at about 12:30. Allow roughly 4½ hours of driving, plus a short coffee or fuel stop, using the A84 and A87 before leaving the main roads for the more attractive D roads around the Loire. The approach to Saumur is particularly pleasant as the landscape opens into vineyards and broad river country. The route includes toll sections, so allow approximately €25–€40 per car in tolls, plus fuel; check both cars’ cross-border and toll arrangements even though today remains within France. On arrival, leave the cars at Hotel Château de Verrières—the centre is walkable, and it is much easier than trying to find a space in the old town.
Break the journey at Château de la Mothe-Chandeniers, near Les Trois-Moutiers, allowing about 1½ hours. This ivy-covered, partly ruined château has a wonderfully romantic atmosphere, with paths through the grounds and water surrounding the building. It is approximately 35–40 minutes from Saumur by car; check the official opening calendar and last admission before setting out, as seasonal hours can vary. Comfortable shoes are useful, and the grounds can be muddy after rain. After the visit, continue to Saumur for a relaxed check-in at Hotel Château de Verrières, a handsome nineteenth-century property with a peaceful garden and an excellent location for an evening on foot.
Walk uphill through the historic centre to Château de Saumur, allowing about an hour before closing. The castle itself may have limited late-afternoon access depending on the September timetable, but the exterior, terrace and approach are worthwhile even if the museum has closed; from here, the views across the Loire, rooftops and surrounding vineyards are among the best in town. Return through the old streets to Le Pot de Lapin for dinner, booking ahead for around 20:00. Expect a polished but unhurried meal based on local produce, with approximately €45–€75 per person before wine. After dinner, stroll briefly along the riverside or back through the softly lit centre—then it is only a few minutes on foot to Hotel Château de Verrières.
Leave Saumur at about 08:00 for Château de Chenonceau, allowing roughly 1 hour 15 minutes by car. Arrive for opening, usually around 09:00, when the château and its gardens are at their quietest; admission is typically about €17–€20 per adult, with ample on-site parking. Allow two hours for the elegant interiors, the long gallery spanning the River Cher and the formal gardens. Before leaving, take a few minutes to walk down toward the river for the best photographs of the château’s distinctive arches.
Continue for approximately 35 minutes to Montrésor, one of the Loire’s prettiest small villages. Park near the village centre and spend about an hour exploring the compact castle, lanes and riverside paths. The atmosphere here is deliberately slower and less grand than at Chenonceau, so it is ideal for a short wander rather than another extended museum visit. Check the castle’s seasonal opening hours before departure, as September hours can vary.
Drive on for roughly 35 minutes to Château de Valençay, arriving around lunchtime. Have lunch locally or at the château if service is available, then allow around 90 minutes for the Renaissance rooms, gardens and landscaped park; combined admission is generally about €15–€20. From Valençay, follow the more scenic D roads toward Châtellerault before joining the A10 for the longer run south. Near Libourne, leave the motorway for the D936 and the vineyard roads into Saint-Émilion. This section takes about 3½ hours of driving, so expect to reach the village in the late afternoon. Arrange accommodation parking in advance: the historic centre is restricted to cars, and the cobbled approaches are awkward with luggage.
After checking in, walk into Saint-Émilion for an aperitif at Les Cordeliers, whose atmospheric underground cloisters are a memorable introduction to the village. A tasting of local crémant usually costs around €15–€25 per person; allow 45 minutes and reserve if you want a particular time. For dinner, take a short taxi ride or drive out through the vineyards to Les Belles Perdrix de Troplong Mondot. Book well ahead for the polished tasting-menu experience, normally around €120–€180 per person excluding wine, and allow two hours. The terrace and vineyard outlook are especially rewarding at sunset, but arrange a designated driver or pre-book a return taxi—Saint-Émilion’s rural lanes are poorly lit after dark.
Leave Saint-Émilion at about 06:30, with the first stop at Dune du Pilat near La Teste-de-Buch. Allow roughly 1½ hours for the drive, plus time to park; the access area can be busy later in the day, while early morning gives you cooler air and beautifully empty views over the Atlantic Ocean and Bassin d’Arcachon. Allow 45 minutes to climb the dune and take photographs. Parking is paid and seasonal arrangements can change, so keep a card handy and wear proper shoes—the sand is surprisingly tiring.
Continue south toward San Sebastián, aiming for the Parte Vieja around late morning. Park in an underground garage such as Parking Boulevard or Parking Okendo, then take a brisk walk along the La Concha waterfront before spending about an hour among the narrow lanes of the old town. The planned lunch at Restaurante Arzak in Alza is a major detour from the motorway and should only be attempted with a firm reservation and confirmation that the kitchen can serve you promptly; allow approximately €150–250 per person and at least two hours. If the timing begins to slip, protect the onward drive rather than turning this into a rushed tasting menu. After lunch, rejoin the A-8 and A-1 toward the long run through northern Spain, with fuel and coffee stops before joining the A-66 south.
The final worthwhile pause is Mirador del Salto del Gitano in Monfragüe National Park, reached via the park roads off the A-66. Allow around 30 minutes for the viewpoint, where the cliffs above the Tagus are often occupied by griffon vultures; sunset light can be superb, but do not linger if daylight is fading, as the approach roads are rural and winding. Continue to Hospes Palacio de los Arenales & Spa, where you should expect a late arrival after this exceptionally long driving day. Pre-arrange secure parking, keep luggage discreet during stops, and check in for a light dinner or room service rather than planning another formal outing; the historic centre of Cáceres is best explored after a proper rest.
Leave Cáceres around 08:30 and follow the A-66 to Mérida, allowing roughly 1¼ hours. Park in a central garage such as Parking Hernán Cortés and walk to the Roman Theatre of Mérida. Allow about 1½ hours for the theatre, amphitheatre and surrounding archaeological area; September opening is usually from around 09:00, with combined monument tickets commonly costing about €16–€20. Continue on foot towards the Alcazaba of Mérida, the oldest Muslim fortress on the Iberian Peninsula, where 45 minutes is enough to see the cistern, walls and views towards the Roman bridge. Wear proper walking shoes—the exposed stone gets very hot, even in September—and keep the cars together if possible, as you will be leaving the main road again after Mérida.
From Mérida, take the smaller roads west towards Monsaraz, crossing into Portugal near Mourão. The drive is much more atmospheric than staying on the motorway: cork oaks, dry-stone walls and wide golden plains gradually give way to the blue expanse of the Alqueva reservoir. Have a late lunch and tasting at Herdade do Esporão near Reguengos de Monsaraz, ideally with a pre-booked wine-and-olive-oil experience and the estate’s polished regional menu; allow 1½–2 hours and budget roughly €50–€100 per person. Then drive the short distance to Monsaraz, park below the walls and wander uphill through the whitewashed lanes to Monsaraz Castle. Allow around 1½ hours for the village and battlements—the views at the castle are especially beautiful in the late afternoon, when the reservoir and vineyards soften in the light. Confirm both the estate reservation and monument hours before departure, as September schedules can vary.
Continue west towards Faro, using the A2 and A22 for the quickest final section, then turn inland for Pousada Palácio de Estoi in Estoi. The elegant pink Rococo palace and tiled gardens make a far more memorable final night than a standard airport hotel; request a room in the historic building if available, and arrange secure on-site parking before arrival. After check-in, dine at the pousada’s restaurant, budgeting approximately €50–€90 per person. It is worth arriving before sunset to walk through the gardens, but do not plan a late excursion into central Faro—after a long driving day, the palace grounds and a relaxed dinner are the better luxury finish.
Start with an easy walk through Cidade Velha, before the heat builds. Enter through the neoclassical Arco da Vila and continue along the quiet lanes towards Faro Cathedral and the small square around Largo da Sé. The cathedral usually opens from around 10:00, with a modest admission charge of roughly €5; the rooftop is worth it for views across the lagoon, though the narrow staircases are not suitable for everyone. Allow about 1½ hours, finishing with coffee at Papaya, on Rua de Santo António, or another café along the pedestrianised centre. If you have luggage or are checking out, leave it with the hotel: the old streets are easiest on foot, and parking inside the walls is limited.
Walk or drive a few minutes to Mercado Municipal de Faro, where the morning trade is at its liveliest. Browse the fish counters, Algarve citrus, figs, almonds and local cheeses; it is a better place for regional atmosphere than for a formal meal. The market generally operates from early morning until mid-afternoon on weekdays, with shorter Saturday hours and closure on Sunday, so check locally if your departure date changes. From there, walk down to Portas do Mar and the Ria Formosa waterfront for your boat to Ilha Deserta. Allow around three hours in total for the lagoon cruise and beach time; bring water, sun protection and sandals, as the island is exposed and facilities are deliberately limited. Confirm the sailing timetable in advance, particularly in September, when services may be less frequent than in high summer.
After returning to Faro, drive about 15 minutes north-east to the Pousada Palácio de Estoi. The rococo palace interiors are associated with the hotel, but the public highlight is the terrace gardens: blue-and-white azulejos, fountains and long views over the Algarve countryside. Allow an hour and check access times ahead, as palace and garden opening arrangements can vary; wear shoes with a good grip on the tiled steps. Continue roughly 15 minutes towards Almancil for dinner at São Gabriel, where the polished service and carefully presented Algarve cooking make a fitting finale. Reserve well ahead and advise the restaurant of any dietary requirements; expect approximately €100–160 per person before wine. If this is also your departure day, leave generous time afterwards: Faro Airport is about 15–20 minutes from Almancil and around 30 minutes from central Faro, but return both cars with fuel topped up and allow at least two hours before an international flight.