Due to uncertainty around changing COVID regulations and the potential impact of sickness within our teams; NMRN may be required to adjust opening hours or close sites at short notice. Whilst all efforts will be made to avoid this and to contact ticket holders ahead of visits we do ask you to check our Facebook and Twitter accounts for details of closures. We apologise for any inconvenience this may cause and thank you for your understanding. 

Pre-booking is advised, and visitors must wear masks for their safety and the safety of others, unless exempt.

HMS Caroline remains temporarily closed. Find The Latest COVID-19 Updates Here.



Royal Navy Submarine Museum

Get up close to HMS Alliance at the Royal Navy Submarine Museum, the only remaining Second World War era submarine. Explore the decks and narrow corridors, look through the original periscope and hear the stories of those who served onboard.

See the museum’s other submarines including Holland I and X24 as well as photographs, documents, ship plans and artefacts from another time.

Discover Silent and Secret, a new exhibition which follows the Royal Navy's at sea nuclear deterrent telling the story of those who served under water for months at a time. See objects that retell hidden conflicts and first-hand accounts from crew onboard.

Take in the history of the site and find out what it was like to face danger underwater. See how a crew of 65 were fed in a galley the size of a broom cupboard.

*COVID Notice: Please note that ALL visitors wishing to go on board HMS Alliance, are required to wear face-covering even if they have a medical exemption. This is due to the restricted airflow onboard the submarine.


After you’ve explored inside the museum, head outside to the memorial garden or to view the harbour area.

If you're looking for the perfect souvenir, head to the museum shop and discover something for every memory made. From pencil toppers to blends of Royal Navy inspired spirits, there's a keepsake for everyone inside.

The Royal Navy Submarine Museum is the perfect place for an adventure with family and friends. Explore HMS Alliance, look through the periscope and hear the stories of those who served on her.

The Royal Navy Submarine Museum, Haslar Jetty Road, Gosport PO12 2AS

Wed - Sun: 10am - 4:30pm
Last entry 4pm. Closed on Mon & Tues

If you are visiting over the festive period, make sure to check our Christmas opening hours.

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Groups of 15 or more are welcome at the Royal Navy Submarine Museum.

Contact us to book your group visit today.
Call - 023 9283 9766 (opt. 3) or Email


The National Museum of the Royal Navy offers an exciting range of interactive learning opportunities and resources to enthuse and inspire learners of all ages and abilities.



Arrive by boat at the Museum’s jetty and enjoy an intimate dining experience aboard HMS Alliance or enjoy a panoramic view of the Harbour from the Museum building. The Royal Navy Submarine Museum is the perfect location for your occasion.


Browse our online shop for the latest collection of naval themed gifts and souvenirs.

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Support the ongoing conservation of our historic vessels, aircraft collections now and for future generations.

Be the first to hear about exhibitions, events, conservation projects, fundraising activities and more from the National Museum of the Royal Navy.