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David Louis Mearns, O.A.M., M.Sc. (born 10 August 1958), is an American-born United Kingdom based marine scientist and oceanographer, who specializes in deep water search and recovery operations, and the discovery of the location of historic shipwrecks.

David Mearns
David Louis Mearns

(1958-08-10) August 10, 1958 (age 61)
Weehawken, New Jersey
ResidenceLodsworth, West Sussex, England
Alma materFairleigh Dickinson University
University of South Florida
OccupationMarine scientist


Early lifeEdit

Mearns was raised in Weehawken, New Jersey, where he attended Weehawken High School, graduating in 1976. He subsequently graduated B.Sc. in Marine Biology from Fairleigh Dickinson University in 1980, and obtained a Masters degree in Marine Geology from the University of South Florida in 1986.[1]

Oceanographic careerEdit

From 1986 to 1995 Mearns was employed in the commercial undersea surveying industry in a managerial capacity. In 1990 he worked on the criminal investigation into the foundering of the freighter Lucona, and in 1994 located the wreck of the ore-bulk-oil carrier MV Derbyshire. Relocating to England in the mid 1990s, he established Blue Water Recoveries, Limited, a commercial company that locates and researches historic deep-sea shipwrecks across the globe.[2]

In 2001, to coincide with the 60th anniversary of the Battle of the Denmark Strait high seas confrontation between the naval forces of the British Empire and III Reich during World War II, Mearns successfully led an expedition funded by Channel 4 Television to locate and film on the seabed of the North Atlantic Ocean the wrecks of the Royal Navy flagship H.M.S Hood, and its nemesis, the Bismarck. An extended television documentary entitled The Hunt for the Hood was produced from the expedition.[3] In 2012 Mearns led an expedition, filmed for a British television documentary entitled How the Bismarck Sank H.M.S. Hood, to re-visit the wreck of H.M.S. Hood to facilitate study of the technical aspects of the warship's destruction.[4]

Blue Water Recoveries Ltd. holds three Guinness World Records, including one for the deepest shipwreck ever found, the German blockade runner Rio Grande, which was located at a depth of 5,762 metres (18,904 ft).[5]

In 2008 Mearns led a search team to find the Australian cruiser HMAS Sydney and the German auxiliary cruiser Kormoran, which both sank following an engagement off Western Australia in 1941 during World War 2. Prior to finding H.M.A.S. Sydney, Mearns said that it was, in some ways, "bigger than the Titanic" because of what it meant to Australia. "Nothing comes close to the Sydney."[6] At the end of 2010, he successfully led the search for another missing Australian shipwreck, the Hospital Ship Centaur, which was torpedoed off Queensland by a Japanese submarine in 1943.[7] On 1 November 2010, Mearns was awarded an honorary Medal of the Order of Australia in recognition of his work in locating and analyzing the wrecks of H.M.A.S. Sydney and A.H.S. Centaur.[8]

On 3 March 2015, Mearns was part of a team led by Microsoft co-founder Paul Allen which located the wreck of the Japanese battleship Musashi in the Sibuyan Sea.[9]

On 15 March 2015, Mearns jointly announced with the Ministry of Heritage & Culture of the Government of Oman the discovery of a shipwreck from Vasco da Gama's 4th Portuguese India Armada in 1502-1503. The wreck is believed to be the Portuguese nau Esmeralda that was commanded by Vicente Sodré, the maternal uncle of Vasco da Gama.[10] Having sunk in May 1503, the Esmeralda is believed to be the earliest ship from Europe's Age of Discovery ever to be found and excavated by archaeologists. Mearns published a paper, with co-authors D. Parham and B. Frohlich, on the discovery in the International Journal of Nautical Archaeology.[11]

Since 2003, Mearns has been studying the possible wreck location of the Endurance, which was lost during the Imperial Trans-Antarctic Expedition in the South Pole in 1915.[12]

In January 2019, Mearns was commissioned to locate a light-aircraft (carrying the professional footballer Emiliano Sala and pilot, David Ibbotson) which had disappeared whilst flying across the English Channel. On 3 February 2019 the search team led by Mearns located the wreck of the aircraft lying in waters around the Channel Islands.[13][14]

Personal lifeEdit

Mearns lives in the West Sussex village of Lodsworth. He is a member of the Royal Geographical Society, and a fellow of the Explorers' Club.[15]


  • Hood and Bismarck (Pub. Channel 4, London) 2001.
  • The Search for the Sydney (Pub. HarperCollins) 2009.
  • The Shipwreck Hunter (Pub. Allen & Unwin) 2017.
  • The Sinking of H.M.A.S. Sydney (Pub. HarperCollins) 2018.


  1. ^ Hague, Jim. "Weehawken native finds HMS Hood on ocean's floor Mearns' six-year journey ends with mixed emotions; leads to documentary, book", The Hudson Reporter, November 9, 2001. Accessed December 29, 2016. "When David Mearns was a youngster growing up in Weehawken, he was always fascinated by water.... Upon graduating from Weehawken High School in 1976, Mearns headed to Fairleigh Dickinson University to major in marine biology. He graduated in 1980 after studying in St. Croix in the Virgin Islands for a semester, then headed to graduate school at the University of South Florida in Tampa."
  2. ^ Entry (dated 2017) for Mearns on the Linkedin professional profile website.
  3. ^ IMDb entry for 'The Hunt for the Hood'.
  4. ^ 'How the Bismarck Sank HMS Hood', Darlow Smithson Productions, 2012, IMDb website (2018).
  5. ^ A.B.C. (Australia) Report, 'The Hunt for H.M.A.S. Sydney', April 2008.
  6. ^ "'I'll find HMAS Sydney'". Sunday Telegraph. 2006-11-12. Archived from the original on 2012-09-05. Retrieved 2008-09-01. Cite uses deprecated parameter |dead-url= (help)
  7. ^ Fraser, Andrew (21 December 2009). "Discovery proves maligned navigator got it right". The Australian. p. 3. Retrieved 21 December 2009.
  8. ^ Smith, Aaron (4 November 2010). "Shipwreck finder gets honorary OAM". Australian Geographic. Archived from the original on 6 November 2010. Retrieved 5 November 2010. Cite uses deprecated parameter |deadurl= (help)
  9. ^ "Live video feed of sunken Japan WWII warship Musashi by Paul Allen research team". 13 March 2015.
  10. ^ "Vasco da Gama shipwreck Esmeralda near Oman from Vasco da Gama fleet".
  11. ^ Mearns, David (14 March 2016). "A Portuguese East Indiaman from the 1502–1503 Fleet of Vasco da Gama off Al Hallaniyah Island, Oman: an interim report". International Journal of Nautical Archaeology. 46 (2): 331–350. doi:10.1111/1095-9270.12175.
  12. ^ 'Shipwreck Hunter David Mearns', profile and interview, 'HistoryNet', 29 April 2018.
  13. ^ CNN, Sheena McKenzie and Samantha Beech. "Wreckage from missing plane of footballer Emiliano Sala found". CNN.
  14. ^ "Who is the man behind the Sala search?". 4 February 2019 – via
  15. ^ 'Blue Water Recoveries' website (2018), biography of David Mearns.

External linksEdit