David Mearns is a fellow of the Royal Geographical Society and the Explorers Club. The Sinking of HMAS Sydney: How Australia's Greatest Maritime Mystery Was Solved is his second book; his first, Hood and Bismarck, co-authored with Rob White, was nominated for the prestigious Desmond Wettern Maritime Media award. His book The Shipwreck Hunter was published in 2017. David and his company, Blue Water Recoveries Ltd, have located twenty-one major shipwrecks, including the hosptial ship Centaur and the Vasco da Gama fleet, and have been awarded three Guinness World Records, including one for the deepest shipwreck ever found at 5,762 metres. David currently lives in Sussex with his wife, Sarah, and their three children.