Central Well of Malebolge / Dante

Ocean games and ocean prizes https://fr.wikipedia.org/wiki/Paul-Henri_Nargeolet Il rejoint l’Institut français de recherche pour l'exploitation de la mer après 22 ans de service dans la Marine nationale10,11 et devient responsable des sous-marins d’intervention profonde Cyana et Nautile12. Avec celui-ci, il réussit en 1987 sa première longue descente vers l'épave du Titanic13,14. Il rejoint ensuite la société RMS Titanic Inc., titulaire des droits sur l'épave, comme responsable des opérations sous-marines11. Il a été le premier en 1993 à avoir remonté à la surface 5 500 objets du navire12, qui appartenaient notamment aux victimes, durant 32 plongées15. Il a participé à huit expéditions : trois avec l’Ifremer, trois avec RMS Titanic Inc., une avec Caladan Oceanic en 2019 et une avec OceanGate en effectuant cinq plongées durant l’été 2021. l est depuis novembre 2018 consultant technique de l'entreprise Caladan Oceanic de Victor Vescovo, notamment sur la mission Titanic Survey Expedition. Le submersible utilisé est le seul à être certifié pour plonger jusqu'à 11 000 mètres de profondeur avec deux personnes à bord https://fr.wikipedia.org/wiki/Nautile_(sous-marin_de_poche) https://fr.wikipedia.org/wiki/Sous-marin_de_poche https://en.wikipedia.org/wiki/Midget_submarine https://en.wikipedia.org/wiki/Stockton_Rush https://en.wikipedia.org/wiki/Victor_Vescovo Vescovo served 20 years in the U.S. Navy Reserve as an intelligence officer, retiring in 2013 as a Commander

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Maritime history exploration In 2019, Vescovo escorted Titanic-historian Parks Stephenson to the wreck of the RMS Titanic for the first revisit of the wreck in 15 years. Findings included continued extensive corrosion and bacterial growth on iron and steel surfaces.[19] Vescovo piloting his submersible during the first of two dives to the wreck of the French submarine Minerve In February 2020, Vescovo piloted his deep diving submersible twice to the wreck of the French submarine Minerve in the Mediterranean Sea. The retired French Rear Admiral Jean-Louis Barbier investigated the wreck of the Minerve on the first dive. On the second dive, Vescovo was accompanied by Hervé Fauve, the son of the captain of the sunken submarine. They placed a commemorative plaque at the wreck.[20] In 2021, Vescovo identified and surveyed the wreck of the USS Johnston (DD-557) at a depth of 6,456 metres (21,181 ft) in the Philippine Sea; at the time of identification this was the deepest shipwreck ever surveyed. The Johnston was sunk during the Battle off Samar (1944) in one of the most lopsided naval battles in history.[21] In 2022 a submersible expedition piloted by Vescovo located the wreck of destroyer escort USS Samuel B. Roberts (DE-413) (also sunk in the Battle off Samar in 1944), in the Philippine Sea at a depth of 6,895 metres (22,621 ft), making it the deepest wreck identified at this dat