On 18 March 2020, Portsmouth Historic Dockyard issued the following tweet. "It is with a heavy heart that we have decided to close all of the sites of The National Museum of the Royal Navy. This is a difficult decision but we've done so with the wellbeing of our staff, volunteers and visitors in mind." Director General Dominic Tweddie

Duncan Wilson, Chief Executive of Historic England stated "Our historic places bring us together. It is vital that they survive intact. Our emergency grants are providing a much-needed safety net to organisations and businesses that are helping to save our most precious heritage.”

The grant from Historic England is very timely and much appreciated. Mary Rose Trust

The newly protected wrecks are HMT Arfon, Submarine U-8 and HM Submarine A3.