London (Southampton) to Barcelona

Southampton, England's storied ocean liner capital on the southern coast, carries an indelible maritime identity — this is the port from which the Titanic departed and from which the Queen Mary 2 still sails in grandeur today. The medieval Bargate and City Walls speak to a history stretching back to Roman times, while the SeaCity Museum tells the story of the great liners with moving intimacy. Day excursions reach Winchester's magnificent cathedral, the stately rooms of Beaulieu, and the primeval wilderness of the New Forest — where ancient ponies still roam freely. Spring and summer offer the most pleasant conditions for exploring the region.

Honfleur, a historic port in Normandy, is known for its stunning waterfront and vibrant artistic heritage, having been a launching point for significant voyages like Samuel de Champlain's to Quebec. Don’t miss the chance to savor local specialties such as moules marinières and tarte normande while exploring the charming cobbled streets. The best time to visit is during the spring and summer months when the town bursts into bloom and outdoor dining thrives.

St. Peter Port is Guernsey's charming harbor capital, combining a thirteenth-century castle, Victor Hugo's extraordinarily decorated exile home where he wrote Les Misérables, and steep streets of shops and markets overlooking one of the Channel Islands' finest harbors. Must-dos include touring Hauteville House, exploring Castle Cornet's five museums, and tasting the traditional Guernsey bean jar. May through September offers the warmest weather for exploring this compact, walkable port town.

Saint-Malo is a historic fortified port city in France, renowned for its maritime heritage and picturesque architecture. Must-do experiences include savoring local delicacies like galettes and oysters while exploring its charming cobbled streets. The best time to visit is during the summer months when the city comes alive with vibrant festivals and outdoor activities.

Brest is a historically significant Belarusian border city dominated by the Brest Fortress memorial, one of Eastern Europe's most powerful World War II sites, and gateway to the primeval Belovezhskaya Pushcha forest where European bison roam. Visitors should explore the fortress grounds and its haunting memorials, walk the lively Sovetskaya Street for draniki potato pancakes, and arrange a day trip to encounter bison in the ancient forest. May through September offers the most comfortable weather, with long days ideal for exploring both the city's war history and the surrounding wilderness.

La Rochelle is a historic French Atlantic port city renowned for its medieval tower-flanked harbour, Renaissance arcaded streets, and proximity to the elegant Île de Ré. Visit from April through October to explore world-class museums, cycle the island's salt marshes and oyster villages, and dine on some of France's finest seafood.

Bordeaux, France's premier port city, is renowned for its historical significance, stunning architecture, and world-class wine. Must-do experiences include savoring local delicacies at Marché des Quais and exploring the breathtaking art installations at Place de la Bourse. The best season to visit is during the late spring and early autumn, when the weather is pleasant and the vineyards are in full bloom.

Saint Jean De Luz, France is a distinctive port city where deep cultural heritage meets authentic local atmosphere, featured on itineraries by Hapag-Lloyd Cruises. Must-do experiences include walking the historic center to experience the layered architectural heritage, and seeking out the regional culinary traditions at a locally favored establishment away from the port area. The optimal time to visit is May through September, when mild temperatures and long days favor unhurried exploration.

Bilbao is the Basque Country's cultural capital, where Frank Gehry's iconic Guggenheim Museum anchors a city transformed from industrial port to world-class destination. Visitors should not miss the pintxo bars of the Casco Viejo and the extraordinary Michelin-starred dining scene, alongside the museum's titanium splendor. The ideal months to visit are May through October, when mild Atlantic weather bathes the city in soft light perfect for exploring its riverside promenades and nearby Rioja wine country.

La Coruña, the Atlantic gateway to Spain's verdant Galicia region, is home to the Tower of Hercules — the world's oldest functioning Roman lighthouse and a UNESCO World Heritage Site — and a waterfront of luminous glass galleries unlike anything else in Europe. Visitors should not miss savouring pulpo á feira and wild percebes at the local markets, nor the short journey to Santiago de Compostela along the Camino. Late spring through early autumn offers the mildest weather, with September providing warm days, golden light, and fewer crowds along the granite streets of the Ciudad Vieja.

Lisbon, Portugal's enchanting capital, stands out for its rich history, stunning architecture, and vibrant culture. Must-try experiences include savoring local dishes like bacalhau à brás and pastéis de nata at Mercado da Ribeira. The best time to visit is during the spring or fall, when the weather is mild and the city is alive with festivals and events.

Portimão is the Algarve's most storied port city, where Phoenician trading heritage meets golden-cliff beaches and Portugal's finest grilled sardine tradition along the Arade River. Visitors should not miss the charcoal-grilled sardines at the riverside churrasqueiras and the dramatic sandstone formations of Praia da Rocha. The port is at its luminous best from May through October, when long Atlantic days bathe the coastline in honeyed light and the August Sardine Festival electrifies the waterfront.

Cádiz, founded by Phoenician traders around 1100 BC and a strong contender for the oldest continuously inhabited city in Western Europe, juts into the Atlantic on a narrow peninsula where honey-colored ramparts frame improbable views of open ocean and the sun sets directly into the sea. The old quarter is an intoxicating labyrinth of baroque churches, hidden plazas, and carnival spirit — Cádiz's annual February carnival is the wildest and most satirically sharp in Spain — while the tapas culture here, centered on fresh Atlantic seafood cooked with Andalusian simplicity, represents Spanish cuisine at its most elemental and joyful. Visit February for carnival or spring for gentle Atlantic breezes. Seville is ninety minutes inland by bus or rail.

Tangier is Morocco's storied gateway between Africa and Europe, a city of Phoenician origins where a whitewashed medina, vibrant souks, and a cosmopolitan waterfront converge at the Strait of Gibraltar. Visitors should not miss savouring traditional pastilla in a rooftop riad and exploring the Kasbah's amber-lit ramparts at sunset. The ideal season to arrive is April through June or September through October, when mild Mediterranean temperatures and fewer crowds allow the city's layered beauty to reveal itself at an unhurried, luxurious pace.

Málaga distils three thousand years of Mediterranean civilisation into one of Andalusia's most compelling port cities, where the Moorish Alcazaba fortress surveys a modern waterfront of elegant promenades and sun-drenched café terraces. Do not leave without visiting the Museo Picasso — the artist was born here in 1881 — and ascending to the ruined Castillo de Gibralfaro for panoramic views stretching to the Rif Mountains of Morocco on clear days. Malagueta anchovies fried in olive oil and the sweet Pedro Ximénez-laced dessert wine are the city's defining pleasures. The shoulder seasons of April, May, and October offer perfect Mediterranean warmth.

Cartagena, Spain, is a storied Mediterranean port city founded by the Carthaginians in 227 BC, where a spectacularly preserved Roman Theatre and Modernista architecture reveal layers of civilisation along a sheltered natural harbour. Visitors should not miss the caldero rice at a harbourside restaurant and a morning exploring the archaeological quarter from the Roman Forum to the Punic Wall. The mild Murcian climate makes autumn through late spring ideal, when temperatures invite leisurely wandering without the intensity of high summer.

Alicante, a historic port city on Spain's Costa Blanca, captivates visitors with its rich history, stunning architecture, and vibrant culinary scene. Must-do experiences include savoring traditional paella by the seaside and exploring the bustling Mercado Central. The best time to visit is during the spring or early fall when the weather is pleasantly warm and the city is alive with festivities.

Beneath Ibiza's sun-drenched reputation as the world's clubbing capital lies a layered history stretching back to Phoenician traders who settled this Balearic island in 654 BC. The UNESCO-listed Dalt Vila — the walled hilltop citadel above Eivissa town — rewards exploration with Carthaginian burial grounds, Renaissance ramparts, and sweeping Mediterranean panoramas. For quieter pleasures, the crystalline coves of the island's north, such as Cala d'en Serra and Es Portitxol, rival any beach in Europe. The Phoenician necropolis of Puig des Molins is unmissable for history devotees. The season runs May through October, with June and September offering ideal weather without peak-summer crowds.

Palma de Mallorca announces itself with one of the most spectacular Gothic cathedrals in the world — La Seu, its honey-coloured sandstone buttresses rising directly from the bay, its interior modified by Antoni Gaudí and illuminated by the world's largest Gothic rose window. The old town behind it is a quarter of Arab baths, Renaissance palaces converted into boutique hotels, and the Passeig del Born — a plane-tree-shaded promenade where Balearic life conducts itself with unhurried grace. The local ensaïmada pastry and fresh sobrasada sausage from the island's black pigs are essential breakfast rituals. Visit May, June, or September: warm, brilliant, and measurably calmer than the July–August peak.

Barcelona is the city where Roman history, Gothic grandeur, and Gaudí's delirious Modernisme collide in a Mediterranean coastal capital of astonishing energy and beauty. The Sagrada Família — still under construction after 140 years — continues its audacious ascent toward completion, while the Gothic Quarter's Roman-era foundations and the Passeig de Gràcia's extraordinary concentration of Modernisme masterpieces reward days of exploration. For a complete sensory experience, lose an afternoon in the covered labyrinth of La Boqueria market before descending to the waterfront for Catalan seafood at its finest. May through June and September through October offer the most pleasant weather; the city connects directly to Paris by overnight train.