Costa Diadema, launched in 2014, is the latest addition to our fleet. It 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.
Day #
Date
Port
Arrive
Depart
1
Wednesday, 5/6/26
About Lisbon
Lisbon is a city of great character and endearing charisma. Located in a hilly region at the mouth of the Tagus, the city retains an old world flair with cobbled alleyways in Alfama, the old town. Competing with the elegant avenues of Alto where sorrowful "fado" music fills the evening air is the Chiado, Lisbons affluent shopping district.
Lisbon Attractions
Don't miss the Mosteiro dos Jeronimos, or Jeronimo's Monastery. Commissioned in 1501 after Vasco da Gama's return from his voyage, this remarkable monastery is a beautiful and unique example of Manueline architecture.
Lisbon Activities
Explore the streets of Lisbon from Rossio Square to the main thoroughfare, the Avenida da Liberdade. Visit the monastery and the Maritime Museum, which houses miniature boats and original maps chronicling the history of navigation from the Middle Ages to today.
Visit Sintra, considered one of the most beautiful palaces in Portugal. It was once the summer residence of Portuguese kings and aristocrats.
Walk through the charming village of Fatima, where numerous sightings of the blessed Virgin Mary have been reported.
Porto is one of the last undiscovered European metropolises,but is increasing in popularity.
This is an ancient port steeped in history and tradition. It is a highly atmospheric place that has become known for its monuments by renowned architects (Gustave Eiffel's Dona Maria Bridge, Nicolau Nasoni's Clerigos Tower, Rem Koolhaas' Casa da Musica, or Siza Vieira's Serralves Museum),
There is literally a wealth of history at Vigos doorstep -- it is said that Spanish treasures ships lie buried in the bottom of the harbor. Vigo is also gateway for a pilgrimage through history to the Shrine of Santiago de Compostela.
Vigo Attractions
Enjoy some of the most beautiful coastline in the world during a drive along the scenic coastal road to La Toja, a city where you'll experience true Galician culture - rich in historical significance and home to a church that is completely covered in seashells.
Vigo Activities
Explore the ruins of Santa Maria de Dozo.
Visit the famous El Berbes or fisherman's area to see the Oyster Market.
Explore the oldest part of the city, with its twisting streets, flights of steps and old mansions.
The port of Le Havre lies at the mouth of the Seine River that flows to romantic Paris, "City of Lights." Paris features the incredible treasures of the Louvre, the Arc de Triomphe, the Eiffel Tower and Sacre Coeur.
Le Havre Attractions
Le Havre's prime location between Honfleur and Normandy offers a huge range of options. It's a gateway to the beaches that witnessed the bravery of D-Day and to the coasts and countryside that inspired so many artists. It's also a good place to visit for its art galleries and cafes, and it offers a relaxing alternative to the half-day commute into Paris.
Le Havre Activities
A gateway to Paris and close to Normandy, the port itself has some excellent cafes and restaurants
Explore the charms of Englands third-largest seaport. Explore Southamptons archaeological sights - modern Southampton is built on the ruins of ancient Roman and Saxon ports.
Southampton Attractions
Visit the Southampton Maritime Museum, which chronicles the history of Southampton and its significant role as a port for ocean liners, the most famous being the Titanic. Not to be missed is the exhibit "Titanic Voices," where visitors can hear the story of the tragic voyage in the words of survivors and those touched by the tragedy.
Southampton Activities
Browse the halls of The City Art Gallery, which was named the "National Fine Art Museum of the Year" in 1994.
Take a guided tour of Old Southampton and walk along the medieval town wall.
Explore the more than 300 acres of open park space in The Common. It's an amazing collection of flora and fauna, so remarkable, in fact, that it has been designated a site of special scientific interest.
Belgium´s medieval port of Zeebrugge leads the way to Bruges, the capital of the Belgian province of West Flanders. As you walk around this city of bridges and canals, you will be captivated by the dignity of the Gothic architecture and the unpretentious display of works of art.
Zeebrugge Attractions
Zeebrugge is a portal to the many facets of Belgium, the dazzling diamonds of Antwerp, the romance of Bruges' intricate canals, the medieval marvels of Ghent, and most importantly, the divine, the sublime - the chocolate!
Liel is a city in northern Germany, capital of the Schleswig-Holstein Bundesland. Located at the Baltic Sea, the city was the countries long time main naval base until the installations were dismantled after the Second World War. Kiel is famous for sailing events. Every year the "Kieler Woche" is held (the first time in 1882), a series of sailing regattas with a cultural framework. In 1936 and 1972, when the Olympic Games were held in Berlin and Munich, respectively, the Olympic yachting competitions were held in Kiel.
Kiel Activities
The main tourist attraction is the Kieler Woche ("Kiel Week") at the end of June, the largest sailing event of the world and one of Germany's largest festivals. Apart from the sailing, the entire centre of the town is transformed into an international food and craft fair, with regular big name performers appearing nightly. Due to Kiels proximity to the North Pole, it stays light until well into the evening making for a spectacular event.
Also famous is in Laboe (part of Kiel on the east-side) a submarine from the 2. World War at the shore and the "Marine-Ehrenmal" (Navy Memorial) with a high tower.
Kiel is famous for the Nord-Ostsee Kanal, the worlds busiest canal. It is possible to walk almost the entire the length of the canal from Kiel to Hamburg, overnighting in the town of Rendsburg.
Kiel is the home of the German Baltic fleet, and it is common to see all types of german warships and submarines in the "Förde", including the sail training vessel Gorch Fock
Costa Diadema, launched in 2014, is the latest addition to our fleet. It 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.
Year Built
2014
Capacity
3,690
Meeting Rooms
Yes
Year Refurbished
N/A
Elevators
14
Casino
Yes
Registry
N/A
Restaurants
7
Disco
Yes
Tonnage
132,500
Bars
15
Fitness Center
Yes
Cabins
1
Pools
3
Children's Program
Yes
Handicap Cabins
N/A
Theaters
Y
Internet Cafe
Yes
Shops
Yes
Library
Yes
Spa
Yes
Cabin Categories | Decks
AftView Extended Balcony
Balcony
Cove Balcony
Deluxe Ocean View
Grand Suite
Inside
Interior
Interior Upper Lower
Interior with Picture Window
Junior Suite
Ocean Suite
Ocean View
Outside
Porthole
Premium Vista Balcony
Spa Balcony
Spa Interior
Spa Ocean View
Spa Suite
Cabin Details
8M AftView Extended Balcony
8M AftView Extended Balcony
8A 8B Balcony
7C Cove Balcony
6L 6M 6N Deluxe Ocean View
GS Grand Suite
Inside
Inside
Inside
Inside
Inside
Inside
Inside
Inside
Inside
Inside
4A 4B Interior
1A Interior Upper Lower
4J Interior with Picture Window (obstructed views)
JS Junior Suite
OS Ocean Suite
6A Ocean Suite
Outside
Outside
Outside
Outside
Outside
Outside
Outside
Outside
Outside
Outside
Outside
Outside
Outside
Outside
Outside
Outside
Outside
Outside
PT Porthole
9C Premium Vista Balcony
8P Spa Balcony
4S Spa Interior
6S Spa Ocean View (obstructed views)
SS Spa Suite
Deck 15
Deck 14
Deck 12
Deck 11
Deck 10
Deck 9
Deck 8
Deck 7
Deck 6
Deck 5
Deck 4
Deck 3
Deck 2
Deck 1
Deck 9 - Bizantino
Deck 10 - Hortensia
Deck 11 - Timur
Deck 12 - Stella D’Africa
Deck 14 - Milleninium Star
Deck 1 - Excelsior
Deck 2 - Sara
Deck 3 - Centenary
Deck 4 - Perla Di Venere
Deck 5 - Eldorado
Deck 6 - Braganza
Deck 7 - Conde
Deck 8 - Star of India
Request Additional Information
Departure Port:
Lisbon
Sailing Date:
Wednesday, 05/06/26
Return Date:
Friday, 05/15/26
Nights:
9
Ship:
Diadema
Cruise Line:
Costa Cruises
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Prices are per person, double occupancy, cruise only and on select sailings. Prices shown are for stateroom categories as noted and are shown in US Dollars. Government taxes and fees are additional. Airfare is not included. Prices and itineraries are based on availability and are subject to change without notice.
Relax and enjoy your vacation onboard your ship. You can do as much or as little as you want. 
Liel is a city in northern Germany, capital of the Schleswig-Holstein Bundesland. Located at the Baltic Sea, the city was the countries long time main naval base until the installations were dismantled after the Second World War. Kiel is famous for sailing events. Every year the "Kieler Woche" is held (the first time in 1882), a series of sailing regattas with a cultural framework. In 1936 and 1972, when the Olympic Games were held in Berlin and Munich, respectively, the Olympic yachting competitions were held in Kiel. 
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