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
Sunday, 9/27/26
About Genoa
For centuries, Genoa has been a major commercial seaport. Today, it is one of Italy's largest cities. Genoa is located in northwestern Italy, in the inner harbor of the Gulf of Genoa. This city was once home to Christopher Columbus and world-renowned violinist Niccolò Paganini. Within the city's medieval walls you can wander the caruggi (alleys) where the wealthy Genovese lived and guilds set up shop. The alleys are still home to specialty shops, Baroque and Romanesque churches and 500-year-old apartment buildings.
Genoa Attractions
Take a deep breath and immerse yourself in the underwater world at the Aquarium of Genoa. This is the largest aquarium in Europe, featuring sharks, dolphins, penguins, seals, sea turtles, jellyfish, giant Japanese spidercrabs, and more. Discover new ecosystems such as the flooded forest, the mangroves, the Madagascar reef and the Moluccan Islands. Adventurers of all ages will be swept away!
Genoa Activities
Piazza de Ferrari - This site of bustling activity is Genoa's town center, dominated by an impressive fountain.
Via Garibaldi - Genoa's leading families built their residences along this street from the mid-1500s onward to escape the cramped conditions of the medieval section. Most of these mansions have been converted to museums housing some of the finest art collections in the country. The 16th-century Palazzo Municipale contains manuscripts by Christopher Columbus.
Piazza Matteotti - This square features important buildings such as the former Doge's Palace, known for its frescoes by Carlone and Tiepolo, and the Gothic San Mateo Church with a crypt containing the tomb of navy admiral Andrea Doria.
Caruggi District - Caruggi, as the winding, picturesque alleys are called, make up the heart of historic Genoa. In this warren of narrow, cobbled streets, extending north from Piazza Caricamento, one finds the city's oldest churches, 500-year-old apartment blocks and tiny shops selling antique furniture. (Not to be explored by night!)
San Donato Church - Located on Piazza San Donato, this small Romanesque church houses a beautiful 16th-century triptych with the Adoration of the Magi by Jan van Cleve.
Founded by Romans in the first century BC, Barcelona is the vibrant capital of Catalonian Spain. Many of the worlds finest treasures can be seen in Barcelonas museums and monuments. Romanesque and Gothic frescoes and treasures can be enjoyed at the Catalan Art Museum. Among the most treasured sites is Gaudis masterpiece, The Sagrada Familia.
Barcelona Attractions
While you're in Barcelona, don't miss the Picasso Gallery. Several adjoining 15th-century palaces house a huge collection (over 2,000 pieces) of Picasso's work.
Barcelona Activities
Stroll along Las Ramblas, a wonderfully vibrant part of the city where street vendors and performers vie for your attention.
Explore the many churches and cathedrals of Barcelona and discover the city's modernist architecture along Paseo de Gracia.
Visit Antoni Gaudí's unfinished Segrada Familia. With eight soaring spires and a spectacular main façade, this cathedral is a true architectural masterpiece.
Cadiz is the western worlds oldest inhabited city with shores bathed by both the Atlantic and the Mediterranean. Tiny villages are scattered at random along golden beaches and up twisting mountain roads leading to romantic Seville. Visit Sanlucar de Barrameda where Magellan began his voyage around the world and Jerez de la Frontera, home of the worlds finest sherry.
Cadiz Attractions
The cathedral in Cádiz is by far its best-known landmark. It was built in the 18th century with gold imported from the New World. There is also a museum with a breathtaking, and priceless, collection of gold, silver and jewels, and the crypt of the great Cádiz-born composer Manuel de Falla.
Cadiz Activities
Stroll through the charming Plaza de Mina, lined with sidewalk cafés and remarkable architecture. It's also home to the Fine Arts and Archaeology Museum.
Climb to the top of the Torre Tavira, one of the 160 watchtowers built in the 18th century, for a view of the entire city.
Relax on one of the beautiful white-sand beaches.
Visit the Oratorio de Santa Cruz church, home to several paintings by Francisco Goya.
Take in the scenery. With water surrounding the city on three sides, Cadiz is famous for its breathtaking landscapes and ocean views.
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.
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.
Located at the southernmost tip of Europe, the Rock of Gibraltar is literally between the Atlantic Ocean and the Mediterranean Sea. Its unique location has played a pivotal role in history, as countries fought for control over this busy seaport.
Gibraltar Attractions
Tour the famous Rock of Gibraltar, one of the world's most important military strongholds.
Gibraltar Activities
Visit the Gibraltar Museum and take a look at the history of this interesting landmark. The museum offers audio/video presentations and galleries filled with old artifacts.
Take a ride in a cable car from the top of the Rock of Gibraltar. You'll have breathtaking views of the Strait of Gibraltar, the southern coast of Spain and the Mediterranean Sea.
Explore St. Michael's Cave. Consisting of two caves, the old and the new. The old cave has been known since Roman times and the new one was discovered in 1942.
A perfect setting of charm, this alluring port is located on Spains Costa del Sol amidst a profusion of exotic wildflowers in perpetual bloom. View the famous natural wood carvings of artist Pedro de Mena at the Malaga Cathedral.
Malaga Attractions
At the heart of town is the unusual Cathedral of Málaga, built over two centuries ago on the site of the former main mosque. It features 17th-century carved choir stalls, fine pictures and 103 individually carved saints.
Malaga Activities
Explore the numerous museums of Málaga, as well as the Gibralfaro Castle.
Visit the town of Nerja and its famous cave, considered one of the most beautiful in Europe. Inside the cave are impressive stalagmites and stalactites and the exceptional 105-foot-high central column in the Cataclysm Chamber.
Behold the arabesque fantasy of Grenada's Alhambra Palace - one of Spain's greatest architectural accomplishments.
Founded nearly 26 centuries ago, Marseilles is the oldest city in France, a mosaic of old and new with a dozen villages and eight islands, each offering a world of enchanting discoveries. At nearby Avignon, visit the magmificient Palace of the Popes and the hilltop Basilica Notre Dame de la Garde. Explore ruins of 13th century Palais Longchamps and colorful "Old Harbour" where you can browse open-air markets.
Marseille Attractions
For the best view of the city, there's only one place to go: Notre Dame de la Garde. Entirely covered in gold leaf, it towers over Marseille at an impressive 500 feet tall (154 meters.) Throughout the years, it has served as a lookout post, a military zone and a place of worship.
Marseille Activities
Stroll around the Old Port, or Vieux Port as the locals say, which was once known as the gateway to the Mediterranean. Here you'll find the popular theatre, Théâtre National de la Criée, as well as many cafés and restaurants lining the streets.
See the amazing history of the city - 26 centuries worth - at Musée d'Histoire de Marseille.
Walk through Cours Julien, a pedestrian square with a beautiful water garden and fountain, as well as trendy shops, cafés and theatres.
Visit Le Prado south of the city where you'll find Parc Borély, a magnificent city park with numerous ponds, a botanical garden and a greenhouse.
A part of the Italian Riviera near Genoa, Savona is a city rich in history and enterprise, largely centered around its port. A tour of the city may include a visit to "Columbus's House," a former residence of Christopher Columbus nestled in the Savona hills. Or one may visit Savona's most important monument, the Priamar, a recently-restored castle stronghold located near the port.
Savona Activities
Near the Rocca di San Giorgio, on the "Promontorio del Priamar", stands the fortress named Priamar, built after fall of Savona in Genoese hands (1528) by the Genoese in 1542, on the area of the old cathedral and old city and later used as a prison and military prison (italian patriot Giuseppe Mazzini was imprisoned here).
Near the Cathedral (built 1589 – 1604) is the Cappella Sistina, containing the tomb erected by the Della Rovere Pope Sixtus IV to honor his parents. The Cathedral has one of the most notworthy wooden choirs of XVI cent. European churches.
Facing the cathedral is the unfinished Palazzo Della Rovere, built by Cardinal Giulio della Rovere (Pope Julius II) from the plans of Giuliano da Sangallo as a university.
The old towers, survived after 1528 ruin (war with Genoa): the Campanassa (Commune tower where freedom of Savona was signed in 1191), towers Corsi and Riario, "Ghibelline Tower", and Torre della Quarda (also known as "a Torretta"), in Leone Pancaldo square.
The Sanctuary of Nostra Signora della Misericordia.
In neighbourhood of Savona remains a house documented as property of Domenico Colombo, father of Christopher Columbus, where they lived for many years (Christopher Columbus lived in Savona for much of his youth).
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:
Genoa
Sailing Date:
Sunday, 09/27/26
Return Date:
Thursday, 10/08/26
Nights:
11
Ship:
Diadema
Cruise Line:
Costa Cruises
Checking For Available Shore Excursions From ShoreTrips®
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.