11-night Mediterranean cruise from Barcelona on Costa Diadema
The Spain, Portugal, Gibraltar, France, Italy is a 11-night Mediterranean cruise aboard Costa Diadema, operated by Costa Cruises. Departing Barcelona on September 28, 2026, the voyage visits 8 ports including Cadiz, Lisbon, Gibraltar. Fares start from $2,069 per person.
Fixed editorial images from the places on this itinerary. They stay stable each time you return to this sailing.
Barcelona
On the northeast coast of Spain, overlooking the Mediterranean, Barcelona is a vibrant port city, packed with centuries of iconic art and architecture—Gaudí and Picasso both called it home—and lined with sunny white-sand beaches. Explore the Catalan capital's tourist attractions and historic neighborhoods, Modernisme and world-renowned art museums, galleries and local crafts shops—some of which are centuries old and stock traditional Catalan wares. After you see the sights, there are lively tapas bars around every corner where you can stop for a drink, a café amb llet (Catalan for espresso with steamed milk) or a snack, no matter the hour. Green spaces for picnics, long walks and respite from the hustle and bustle are scattered throughout Barcelona's attractions: There's Gaudí's mosaic-decorated park, a neoclassical maze at the Laberint d'Horta, as well as plenty of high places (mountains, monuments and edifices) where sightseeing visitors can take in the view. A short trip from Barcelona by car or train, luxury outlets, cava wineries, a mountaintop abbey and the sandy beaches of the Mediterranean coast await.
Cadiz
More than a hundred watchtowers gaze out across the waves surrounding this ancient Andalusian city. Sprinkled with evocative cobbled side streets, you’ll explore 3,000 years’ worth of history, while stumbling across palm-tree lined plazas of shaded coffee sippers. Cadiz claims the mantle of Western Europe’s oldest city, and every piece of architecture - and every wrong turn - offers a chance to discover fascinating new tales. Founded by the Phoenicians in 1100BC, Christopher Columbus used the city as a base for his exploratory, map-defining voyages of 1493 and 1502.
The port grew in importance and wealth as Cadiz’s strategic location close to Africa’s northern tip helped it blossom into a centre for New World trade. Catedral de Cádiz, is a display of the city’s wealth and importance, looming spectacularly over the Atlantic’s waves, with cawing seagulls sweeping between its twin bell towers. Inside, treasures from the city’s trading exploits in the West Indies and beyond - which helped fuel the growth of this historically prosperous city – are on display. Enveloped by ocean on almost every side, Cadiz has something of an island feel, and you can cool off from southern Spain’s unrelenting sunshine on the sweeping golden sand beach of Playa Victoria. The two towers of the new El Puente de la Constitución de 1812 mark a contemporary landmark in this most ancient of cities, in the form of a spectacular new road bridge. Torre Tavira, meanwhile, is the most famous of Cadiz’s army of watchtowers, and the highest point in the city. Reach the top for a view of the ocean fringing the city’s expanse, and to learn about the towers - constructed so trading merchants could survey the harbour from their lavish homes. The Central Market is a chaotic place of bartering, where flashing knives dissect fresh fish. Stop in at the orbiting bars to enjoy tapas, freshly prepared with the market’s produce.
Lisbon
Lisbon, the capital of Portugal, is a city open to the sea and carefully planned with 18th-century elegance. Its founder is said to be the legendary Ulysses, but the theory of an original Phoenician settlement is probably more realistic. Known in Portugal as Lisboa, the city was inhabited by the Romans, Visigoths and, beginning in the 8th century, the Moors. Much of the 16th century was a period of great prosperity and overseas expansion for Portugal. Tragedy struck on All Saints' Day in 1755 with a devastating earthquake that killed about 40,000 people. The destruction of Lisbon shocked the continent. As a result, the Baixa (lower city) emerged in a single phase of building, carried out in less than a decade by the royal minister, the Marques de Pombal. His carefully planned layout of a perfect neo-classical grid survived to this day and remains the heart of the city. Evidence of pre-quake Lisbon can still be seen in the Belém suburb and the old Moorish section of the Alfama that sprawls below the Castle of St. George.
Lisbon is a compact city on the banks of the Tagus River. Visitors find it easy to get around as many places of interest are in the vicinity of the central downtown area. There is a convenient bus and tram system and taxis are plentiful. Rossio Square, the heart of Lisbon since medieval times, is an ideal place to start exploring. After a fire destroyed parts of the historic neighborhood behind Rossio in 1988, many of the restored buildings emerged with modern interiors behind the original façades.
The city boasts a good many monuments and museums, such as the Jeronimos Monastery, Tower of Belém, the Royal Coach Museum and the Gulbenkian Museum. High above the Baixa is the Bairro Alto (upper city) with its teeming nightlife. The easiest way to connect between the two areas is via the public elevator designed by Gustave Eiffel.
Cruising up the Tagus River to the ship's berth, you can already spot three of Lisbon's famous landmarks: the Monument to the Discoveries, the Tower of Belém and the Statue of Christ, which welcomes visitors from its hilltop location high above Europe's longest suspension bridge.
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Follow the entire sailing from its first day to its last, with the route and schedule in one view.
Day 1·Sep 28, 2026
Barcelona
On the northeast coast of Spain, overlooking the Mediterranean, Barcelona is a vibrant port city, packed with centuries of iconic art and architecture—Gaudí and Picasso both…
Costa Diadema, launched in 2014, is built for relaxation and fun with lots of on-board activities, scintillating bars, gourmet restaurants and the spa area.
Among the special features not to be missed: an entire deck dedicated to children with castle and pirate galleon and the terrace on deck 5 for strolling and enjoying an aperitif at sunset: a real treat for holidaying in perfect Italian style. The cabins aboard our Flagship are elegant, well-appointed and spacious for up to five guests. At any time of the day or night you'll be spoilt for choice on what to do: sports, games, a large three-story theatre that welcomes international artists, and you too can take to the stage with Tu sì que Vales... and then the Aperol Spritz Bar for a cocktail before dancing the night away at the disco, a games room for returning to your childhood and a real German pub. We look forward to welcoming you on board. Now take a look at the current position of Costa Diadema.
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