Assault all your senses by walking onboard HMS Alliance, the only remaining WW2 era submarine, and take a journey through every decade of her service. Take a peek through the working periscopes, and see, hear and even smell how life was lived under the sea.


HMS Alliance is Britain’s only remaining World War II submarine and stands as a memorial to the 5,300 British submariners who have lost their lives in service.

A tour of Alliance begins in the forward torpedo store, through the accommodation space to the control room, where the navigation systems including the working periscopes are on display. The tour continues through the galley and onto the heart of the submarine, the engine room, before culminating in the aft torpedo compartment, where you can see how submariners would escape in an emergency. 

HMS Alliance forms the centrepiece of the Royal Navy Submarine Museum along with Holland I and X24, the museum also contains thousands of photographs, documents, ship plans and artefacts. The Royal Navy Submarine Museum is located in Gosport on the former site of HMS Dolphin; home to the Submarine Service for 100 years. A complimentary waterbus takes visitors across the harbour from Portsmouth Historic Dockyard.

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


A new permanent exhibition exploring the history of the British nuclear at-sea deterrent is now open at the Royal Navy Submarine Museum. The new exhibition opens on the 50th anniversary of HMS Resolution launching. It will reveal the challenging nature of working in these submarines and help promote discussion about why the nuclear deterrent was adopted. 

Life under the sea poses challenges that go unseen and unheard. The exhibition will present an insight into life on board the "Silent & Secret" Polaris submarines, using personal accounts and key displays drawn from a number of National Museum of the Royal Navy sites, private lenders and other museums. Visitors will be able to hear stories and see documents and personal possessions of those who served in the Polaris submarine fleet.


The Royal Navy Submarine Museum is open: 

Normal Opening hours are Wednesday – Sunday 10am – 4.30pm

The first pre-booked slot will be 10am and final is 3.30.

Opening hours are extended for the School Holidays. Therefore we will be additionally open Monday’s and Tuesdays (10-4.30) on the following dates:

April 4, 5, 11, 12, 18 and 19.

We will be open 7 days a week from 30 May. Only open 7 days a week in school holidays so for week of 30 May and then back down to 5 days a week, until school summer holidays (opening Mondays and Tuesdays from 25 July.  Going to 5 days a week from 5th September 2022 until October half term. (Weds – Sun) all year except school holidays where we are 7 days a week.

Pre-booking is advised but we do accept walk up visitors. Discounts are offered on pre-booked tickets.

Waterbus to Gosport sites

Runs weekends and school holidays only in winter months (Nov to March)

Runs Wednesday to Sunday April to October, with the exception of school holidays where it runs 7 days a week

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Portsmouth Historic Dockyard is temporarily not accepting walk up ticket purchases, so make sure you buy your ticket and book your time slot in advance!

Bought a new ticket to the Royal Navy Submarine Museum or Portsmouth Historic Dockyard and want to visit? Click on the link above and put in your Barcode ID to book your time slot.

Please note that a visit to the Submarine Museum will need to be booked separately from a visit to the Portsmouth Historic Dockyard.

Follow the link above to book a re-visit to the museum.

Getting to the Royal Navy Submarine Museum

Address: Haslar Road, Gosport PO12 2AS 

Polite notice: Whilst the postcode is correct, sat navs may direct you to the centre of the naval base. Please follow tourism signs for the Submarine Museum once you've entered Gosport. 

A Waterbus from the Historic Dockyard runs regularly to the museum, however is currently running at reduced capacity due to government COVID-19 restrictions.

The Waterbus is unfortunately unable to accommodate wheelchairs, due to the unsuitability of the jetty and steps. A wheelchair can be pre-arranged to meet the waterbus on arrival in Gosport. Please ask a member of staff for details or email to confirm availability.