Cité de la Mer
Submarine, Titanic and deep-sea aquarium
Housed in the 1933 Art Deco station built for the transatlantic liners, the Cité de la Mer is all about the world beneath the waves. Highlights include France’s first nuclear-powered missile submarine, the Titanic’s call at Cherbourg and an aquarium 10.70 m deep.
Tickets for the Cité de la Mer
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What to expect at the Cité de la Mer
The Cité de la Mer occupies the former Gare maritime transatlantique on Cherbourg’s harbour. The terminal opened on 30 July 1933, was built in Art Deco style and has been listed as a Monument historique since 1989. This is where passengers on the transatlantic liners stepped off the train and onto the ship. The two great halls measure 280 × 42 m and 240 × 40 m. In 1927 up to eleven transatlantic shipping lines were represented in Cherbourg.
Today the building is split into six areas:
- L'océan du Futur, with the deep-sea aquarium
- Cherbourg Transatlantique, a mixed-reality experience with a headset
- Le Redoutable, the nuclear submarine you can walk through
- Océan sur Écoute, on the sounds of the underwater world
- Titanic retour à Cherbourg, on the Titanic’s call at Cherbourg
- Grande Galerie des Engins et des Hommes, with its submersibles
In the former train hall, Cherbourg Transatlantique uses a headset to take you back to the age of the great liners. The 35-minute experience centres on the Queen Mary’s first call at Cherbourg on 14 April 1937. Océan sur Écoute is devoted to the sounds of the sea: the route takes about 30 minutes, is step-free, has texts in French, English and German and is divided into five zones, including the PCNO simulator from the submarine Furtif.
The Grande Galerie mainly shows civilian submersibles. The Archimède was launched in 1961 and in 1962 reached a depth of 9,545 m in the Kuril Trench. Alongside it are Alvin, Cyana, Globule and Mir. Around 15 minutes is enough for the gallery, which is step-free and free to enter.
Le Redoutable: on board a nuclear submarine
Le Redoutable was France’s first nuclear-powered missile submarine and entered service in 1971. She is 128 m long and 10.60 m wide, carried 16 missiles and a crew of 135. A patrol lasted 70 days. Visitors have been able to walk through the submarine since 2002.
The audio guide comes in two versions: Pacha explains the technology, while Bidou is aimed at families. Children under five are not allowed on board. The submarine is not wheelchair accessible.
Titanic: the call at Cherbourg
At 18:35 on 10 April 1912 the Titanic stopped in the roadstead off Cherbourg, her only call in continental Europe. 281 passengers were ferried out to her on the tenders Nomadic and Traffic, and the stop lasted around an hour and a half.
The Titanic retour à Cherbourg area tells this story in a loop that restarts every 30 minutes. Until spring 2027, 42 objects recovered from the wreck’s debris field are on display. The Salle des Bagages covers emigration. On days when a cruise ship docks in Cherbourg, this room is closed. If you’re arriving by ship yourself, Cherbourg cruise port explains how things work ashore.
The deep-sea aquarium
The Aquarium Abyssal is the centrepiece of L'océan du Futur. It is 10.70 m deep and holds 350,000 litres. Around 1,000 fish from Polynesia live in a recreated Tahitian atoll. Altogether the area has 17 aquariums. A lift links the three levels, and QR codes and the Poisson pilote audio guide accompany you round.
Tips for your visit
Allow four to five hours to see everything. That makes the morning the best time to start, as ticket desks close 90 minutes before the building does. Tickets are valid all day, so after lunch in the old town you can head back in. It’s busiest from mid-July to the end of August, and Saturdays are usually quietest. Tickets are also sold at the tourist office (Office de Tourisme) on Quai de Caligny.
The Cité de la Mer closes for its annual break from 4 January to 5 February 2027 and also shuts on some days in winter. The operator publishes the day-by-day calendar on its website.
It’s about a 15-minute walk from the railway station; follow the signs for “Car Ferries / La Cité de la Mer”. The car park is free and unattended, with spaces for coaches and for disabled visitors. There are bike racks at the main entrance and an electric car charging point. The harbour page shows how the ferry terminal, the cruise terminal and the Cité de la Mer relate to one another.
Dogs and other animals have to stay outside; assistance dogs are welcome. Coin-operated lockers are behind the Archimède. For food there’s the Le Quai des Mers restaurant, a snack bar and picnic areas, some of them covered. If you plan to come back, there’s an annual pass, the Pass CompliCité. For more places to visit in town, see the overview of sights.