Last September when we visited Portsmouth Historic Dockyard, we had an unexpected treat: the spectacle of HMS Victory firing a full 64-gun rolling broadside in honour of the new National Museum of the Royal Navy which incorporates all the naval museums under one umbrella. My photos (below) of the broadside don't do justice to the event but I found a You Tube video of it made by the companies who provided the pyrotechnics and set them off. Even with the sound on full blast, it doesn't do full justice to the real volume and depth of the noise.
We were also lucky enough to be able to visit Henry VIII's warship Mary Rose (which sank in the Solent in 1545) just before the viewing gallery closed for the building of a new museum which will display the remains of the ship and a reconstruction of its missing side to full advantage, now that the lengthy preservation process of the surviving hull is complete.
Now that's what I call A Grand Day Out.