Readers may wish to read the following extracts from my article 'Lest We Forget - 80 years ago this day". Remembering HM Submarine Olympus, lost off Malta 8 May 1942, with the loss of 89 lives - the greatest RN submarine tragedy of the Second World War. This article has been uploaded to the website of the Friends of the Submarine Museum, 12 May 2022. Extracts: HMS Olympus was an Odin class submarine, designed for long-distance patrolling and measuring 84 metres in length and 9 metres in beam, launched in December 1928. Her Second World War patrols in the Far East and Mediterranean are well documented on the website uboat.net, sourced from Admiralty records in The National Archives. She had arrived in Malta from Gibraltar (under command of Lt Cdr Herbert George Dymott, RN) on 3 May 1942 on her fifth ‘magic carpet’ storage trip to the Island in six months, carrying essential fuel and torpedoes. During these first six critical months of 1942, as Kesselring’s Luftwaffe pounded the Island relentlessly in preparation for invasion in the summer, Allied convoys were unable to reach Malta. Three merchant ships managed to arrive in harbour in January, but only two merchant ship cargoes were successfully unloaded in February - July due to the tempo and ferocity of Luftwaffe bombing. HMS Olympus departed Malta for the return trip to Gibraltar under cover of darkness in the early hours of 8 May. She was carrying on board the surviving crews of three other submarines (P39, P36 and HMS Pandora) that had been sunk by heavy enemy bombing in harbour between 26 March and 1 April. While trying to avoid newly laid minefields (some 54,000 mines were reportedly laid by the Italians in Malta’s waters) she tragically hit a mine on the surface some seven miles off Valletta and sank shortly afterwards. Though many of the 98 men on board succeeded in leaving the submarine alive, they could not manage to fire her gun or set off distress flares in the few minutes available to them to attract the attention of coastal observers, who in any case might have been distracted by the ongoing air raid. No search-and-rescue craft were despatched. Only nine crew members survived the long and chilly swim to shore. It took the survivors some five hours to swim to safety. The bodies of ten crew members were later washed ashore and buried at Capuccini Naval Cemetery, Kalkara. The wreck of HMS Olympus was finally discovered in 2011, lying upright on sandy mud at a depth of 115 metres, during a systematic high-frequency sonar survey of the seabed by a team led by Timothy Gambin, Professor of Maritime Archaeology at the University of Malta, in approximate position 35º55'N, 14º35'E. Images taken by a remotely operated vehicle (ROV) confirmed that the wreck was indeed of HMS Olympus. Professor Gambin recounted the story of HMS Olympus and its discovery in the annual Andrew Vella Memorial Lecture at the University of Malta in December 2013, publishing this in detail in Storja 2015, the re-launched journal of the Malta University Historical Society. (See: HMS Olympus: A Tale of Tragedy and Heroics. Storja 2015 (University of Malta), pp.111-120.) An international team led by Professor Gambin returned to dive on the wreck for the 75th anniversary of the sinking, in May 2017, placing a memorial plaque next to the conning tower in remembrance of those who lost their lives in this tragic event.