Corsica, Sardinia & Iberian shores

The port of Nice is a vibrant gateway to the French Riviera, offering a rich tapestry of history, stunning architecture, and delectable local cuisine. Must-do experiences include savoring local specialties at the bustling Cours Saleya Market and exploring the charming streets of Vieux Nice. The best time to visit is during the spring and early fall when the weather is mild and the city is alive with cultural festivities.

Calvi is Corsica's jewel-box port town where a commanding Genoese citadel overlooks the Mediterranean's finest urban beach — four miles of white sand lapped by Caribbean-clear water beneath snow-capped mountains. Visit June or September via Ponant or Explora Journeys for citadel walks, Corsican wild boar and brocciu cheese, and the essential paradox of an island that is French by law but entirely its own in character.

Ajaccio, the vibrant capital of Corsica, enchants visitors with its rich history as Napoleon's birthplace and its stunning coastal views. Don't miss trying local delicacies like figatellu and brocciu, and explore the nearby picturesque villages. The best season to visit is during the mild spring or fall months, when the weather is pleasant and the crowds are fewer.

The Sanguinaires Islands are four crimson-tinted granite islets off Corsica's western coast, named for the spectacular blood-red sunset light that transforms their rock faces each evening into one of the Mediterranean's most dramatic natural light shows. Essential experiences include sunset boat excursions positioned between the islands, snorkeling the crystal-clear waters over Posidonia meadows and grouper-inhabited reefs, and tasting Corsican charcuterie at waterfront restaurants along the Route des Sanguinaires. May through October provides the best conditions, with June and September offering warm water and smaller crowds than the peak summer months.

Bonifacio is a dramatically cliff-perched medieval citadel at Corsica's southern tip, where Genoese ramparts tower above a fjord-like natural harbour in the turquoise Strait of Bonifacio. Visitors should descend the vertiginous Escalier du Roi d'Aragon carved into the limestone cliffs and take a boat excursion to the pristine Lavezzi archipelago nature reserve for world-class snorkelling among sculpted granite formations. The ideal window is June or September, when the Mediterranean light is at its most luminous and the narrow streets of the haute ville remain blissfully uncrowded.

Alghero is Sardinia's Catalan jewel, a medieval walled town where bilingual street signs, fourteenth-century Aragonese fortifications, and the spectacular Neptune's Grotto sea cave create the island's most culturally distinctive coastal experience. Visit May through October via Silversea or Explora Journeys for sunset wall walks, the 656-step cliff descent to Neptune's Grotto, and lobster alla catalana served within the honey-colored ramparts of a city that bridges Barcelona and Sardinia.

Mahón commands one of the Mediterranean's deepest natural harbours, a fjord-like inlet on Menorca that captivated British admirals, Phoenician traders, and Roman generals in turn — its Georgian townhouses and gin distilleries speaking eloquently to centuries of contested heritage. Explore the clifftop old town's baroque Santa María church with its 3,200-pipe organ, then cross the water to the imposing fortress of La Mola for sweeping harbour views. The island's prized caldereta de langosta, a slow-simmered lobster stew, is best savoured at the fishing village of Fornells. Visit between May and June or September and October for warmth without the summer crowds.

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.

Valencia, Spain's luminous third city, dazzles with a creative energy anchored by two thousand years of layered civilization — Roman foundations, Moorish irrigation gardens, a Gothic cathedral housing what many believe to be the Holy Grail, and Santiago Calatrava's futuristic City of Arts and Sciences gleaming beside a park-filled riverbed. The city invented paella over an open fire of orange-wood in the surrounding huerta, and the Las Fallas festival each March — when neighborhoods compete to erect and then ceremonially burn towering satirical sculptures — is one of Europe's most spectacular celebrations. Valencia's Mediterranean climate makes it exceptional year-round.

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.