There are plenty of boats to board in London but how about stepping on board a genuine Cold War submarine? If you take a day trip to Chatham Dockyard then you can see what it’s like inside HMS Ocelot. To say that it’s cramped would be a massive understatement, it’s like you’re walking through corridors of pipes and dials and the doors (if you can even call them doors!) are the same size as a dinner plate. You almost have to be an acrobat to squeeze yourself through them. That line of buildings you can see at the back of the photo is where they filmed a lot of scenes for Call The Midwife – whenever you see a nun cycling along the docks that’s invariably where they are.


British submarine HMS A5.

HMS A5 was built in Barrow-in-Furness, launched in March 1904 and commissioned on 11 February 1905. Her displacement was 190 tons surfaced, length 105 feet, beam 12.5 feet and a draught of 10.5 feet, so she was tiny by today’s standards or even those of the immediate post war era. The A5’s engines were powered by petrol and she had a range of approximately 300 miles. Her armament consisted of two 18-inch bow torpedo tubes and she carried 4 torpedoes, two in the tubes and two spare. A5’s crew consisted of 2 officers and 9 ratings.