Romantic Rhine with Swiss Alps, 3 Nights in Lake Como & 1 Night in Lucerne (Northbound)

Paris rewards every arrival as though it were the first — the sweep of the Seine, the Gothic tracery of Notre-Dame rising again from its 2019 ashes, the Eiffel Tower somehow managing to astonish at each encounter, the Louvre's glass pyramid reflecting clouds in the courtyard of a palace that served French kings for four centuries. Beyond the monuments, Paris is a city of neighbourhoods: the Belle Époque brasseries of Montparnasse, the covered passages of the 2nd arrondissement, the rooftop terraces of Le Marais. The Luxembourg Gardens in April, or a late-September evening on the Canal Saint-Martin, are among the most civilised experiences in the world.

Poised at the confluence of the Oise and the Seine, Conflans-Sainte-Honorine has been France's inland waterway capital for over a century, its quays mooring more than a thousand traditional péniches whose painted hulls form a floating village of singular charm. The hilltop medieval town commands sweeping views over the meeting of rivers, while the National Inland Waterways Museum aboard a converted barge chronicles France's extraordinary network of canals and waterways. Just thirty kilometres from Paris, Conflans is best visited in summer, when barge festivals fill the riverbank with music, local produce, and the unhurried pleasures of la vie fluviale.

La Roche-Guyon is arguably the most dramatically situated village in the Île-de-France: a medieval castle and Renaissance château built directly into sheer white chalk cliffs above a perfect bend in the Seine, seventy kilometres northwest of Paris. Richard the Lionheart and Rommel both knew these cliffs, the latter using the château as his headquarters during the final weeks before D-Day. Today it rewards visitors with troglodyte caves carved into the rock, immaculate French gardens, and river views of extraordinary pastoral beauty. La Roche-Guyon is at its most enchanting April through October; it pairs naturally with a leisurely cruise along the Seine's Norman reaches.

Avignon's Palais des Papes — a fortress-palace of staggering medieval ambition where seven successive popes held court for seventy years — still dominates this Provençal city's skyline, its limestone bulk enclosing frescoed chapels and vast ceremonial halls that once shaped the destiny of Christendom. In July, the city transforms for the celebrated Festival d'Avignon, Europe's premier theatre gathering, turning every courtyard and cloister into a stage. Year-round, the beautifully preserved historic centre offers world-class Rhône Valley wines, refined Provençal cuisine, and the beguiling spectacle of the Pont Saint-Bénézet stretching halfway across the river. Lyon and Marseille are each accessible in under ninety minutes by TGV.

Framed by snowcapped Alps and the mirror-bright waters of Lake Lucerne, this medieval Swiss gem centres on the 14th-century Kapellbrücke — one of Europe's oldest covered bridges — and a colourful Altstadt that has changed little in five centuries. Ride the cog railway to cloud-wreathed Mount Pilatus, savour Älplermagronen in a timber-beamed tavern, and explore the nearby wonders of Interlaken and Grindelwald. Late spring through early autumn offers the most spectacular lake reflections and settled mountain weather.

Mainz is where the modern world was printed into existence: Johannes Gutenberg's invention of movable-type printing around 1440 transformed this ancient Rhine city into the birthplace of the information age, a legacy honoured at the extraordinary Gutenberg Museum, home to one of the surviving original Bibles. The Romanesque cathedral of St. Martin, built over a millennium from the year 975, anchors a charming old town of wine taverns and market squares where Rhenish Rieslings flow freely. Visit between spring and autumn for the famous Mainz Wine Market held beside the Rhine. A day-cruise port with surprising cultural depth.

Rouen, the medieval capital of Normandy set in a wooded meander of the Seine, rewards slow exploration with one of France's richest concentrations of Gothic architecture. The vast cathedral — immortalised by Monet in his celebrated series of canvases — dominates a city where half-timbered lanes wind between Renaissance mansions and the square where Joan of Arc was burned in 1431. The covered market overflows with Normandy's great dairy bounty: camembert, livarot, and pont-l'évêque alongside cider and calvados. Paris lies just ninety minutes south by train. Spring and early autumn offer the most atmospheric conditions.

Caudebec-en-Caux nestles in a Seine meander between Rouen and the sea, famous for its Flamboyant Gothic Eglise Notre-Dame — a masterwork of late medieval stone lacework so exquisite that Henri IV called it 'the most beautiful chapel in my kingdom.' The town serves as an ideal quiet base for exploring the Seine Valley's quieter pleasures: the remarkable Abbaye de Jumiéges, its roofless nave open to the Norman sky, and the Manoir d'Ango, a Renaissance manor of extraordinary ambition, are both within easy reach. The tidal atmosphere of the Seine at this point rewards early morning walks along the embankment. Rouen, with its Gothic cathedral and Impressionist legacy, lies forty minutes east.

Founded in 1517 by Francis I and rebuilt after World War II devastation by Auguste Perret's visionary grid of reinforced concrete — now a UNESCO World Heritage Site — Le Havre is a city where urban architecture becomes a form of art. The monumental church of Saint-Joseph, lit from within by fifteen thousand pieces of coloured glass, is a masterpiece of post-war modernism. Day trips to Honfleur, the exquisite half-timbered port that launched Impressionism, and to the D-Day beaches of Normandy, make Le Havre one of the channel's most strategically placed cruise calls. The city is most agreeable May through September; the Honfleur excursion rewards in any season.