HMS Monitor M33

Tucked away within the historic Portsmouth Dockyard lies a rare survivor of the First World War: HMS M33. Built in 1915, she is one of only three British warships from the Great War still in existence today, offering a profoundly intimate glimpse into life at sea over a century ago. Unlike the massive battleships that dominate the harbour, the M33 is a monitor—a vessel designed specifically to carry heavy guns for coastal bombardment, making her role in the Dardanelles Campaign a pivotal part of her storied past.

Visitors can step aboard the ship to explore her remarkably preserved interior, where immersive soundscapes and light projections bring the 1915-16 campaign to life. You’ll walk the decks and navigate the cramped quarters, gaining a visceral understanding of the conditions faced by a crew of 72 men living in such confined spaces. It is a brilliant example of how naval history can be made accessible and emotionally resonant for modern audiences.

Because HMS M33 is part of the broader Portsmouth Historic Dockyard, you can easily combine your visit with tours of the HMS Victory or the Mary Rose Museum. The ship is situated in a dry dock, which allows you to view her hull from below—a unique vantage point that truly reveals the scale of this compact yet powerful vessel. It is a must-visit for military history buffs and curious families alike.

Practical tips for your visit: while the dock itself is well-integrated into the historic site, remember that the ship is a historic vessel, so internal movement can be tight. Wear comfortable shoes, and allow plenty of time to explore the rest of the Dockyard, as the admission ticket often covers multiple attractions. The best time to visit is during the shoulder seasons (spring or autumn) when the dockyard is slightly quieter but still fully operational.