Calypso Deep

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Location of Calypso Deep.

Calypso Deep, located in the Hellenic Trench, Ionian Sea 62.6 km south-west of Pylos, Greece, is the deepest part of the Mediterranean Sea, with a maximum depth of 5,267 m (17,280 ft), at 36°34′N 21°8′E / 36.567°N 21.133°E / 36.567; 21.133Coordinates: 36°34′N 21°8′E / 36.567°N 21.133°E / 36.567; 21.133.[1][2]

Manned descents[edit]

The first manned descent into Calypso Deep was on 27 September 1965 by Captain Gérard Huet de Froberville, Dr. Charles “Chuck” L. Drake (USA), and Henri Germain Delauze in the French bathyscaphe Archimède. Drake, Froberville, and Delauze reported a maximum depth of 5,110 m (16,770 ft) without a reference to the measurement accuracy.

In January, 2020, Caladan Oceanic commenced its second year of deep diving with the DSV Limiting Factor, piloted by Victor Vescovo. The first dives of the 2020 season commenced with dives to the French submarine Minerve in the Mediterranean Sea on 1-2 February 2020, and the second manned descend to the Calypso Deep.[3][4] On 10 February 2020 Victor Vescovo and Prince Albert II of Monaco reached the bottom of the Calypso Deep at a newly calculated depth of 5,109 m (16,762 ft) ±1 m (3.3 ft) using multiple direct measurement sensors. The 2020 expedition validated that the French mission in 1965 had, in fact, reached the deepest point of the Mediterranean Sea which, until this point, was not affirmed.[5]

See also[edit]


  1. ^ Barale, Vittorio (2008). "The European Marginal and Enclosed Seas: An Overview". In Vittorio Barale; Martin Gade (eds.). Remote Sensing of the European Seas. Springer Science+Business Media. pp. 3–22. ISBN 978-1-4020-6771-6. LCCN 2007942178. Retrieved 28 August 2009.
  2. ^ NCMR - MAP Archived 2009-08-28 at the Wayback Machine
  3. ^ "Founder of the Five Deeps Expedition Launches New 2020 Voyage". 2020-02-07. Retrieved 2020-02-11.
  4. ^ "Caladan Oceanic expedition page". Retrieved 2020-02-11.
  5. ^ "Phase II of Caladan Oceanic's 2020 Expedition Programme, Caladan Oceanic's Victor Vescovo and EYOS Expeditions dive with Prince Albert II of Monaco to the deepest point in the Mediterranean Sea". 2020-02-12. Retrieved 2020-03-27.