The good news is that days after it was announced that the museum was to close for good at the end of April, the Royal Naval Historic Dockyard Trust has stepped in and agreed to take over the running of 'Explosions'. I don't know whether it will remain at Preddy's Hard or whether the contents will be moved to Portsmouth Dockyard. I will update if I find anything. Its a great place if you like naval guns, shells, mines, torpedoes, hedgehogs, squids, missiles etc