France, April 28 -- At a secret location off Ramatuelle on France's southern coast, the Camarat 4 sank around 500 years ago and was discovered by chance in 2025 during a French military seabed survey.

Now, Operation Calliope 26.1 is carrying out the first stage of a joint research mission on the wreck, led by Cephismer, the French Navy's deep-sea intervention unit, and DRASSM, the Culture Ministry's underwater archaeology department.

Its exact coordinates are being kept secret because of the sensitivity of the objects found on the seabed.

Wreck discovered of French steamship that sank in Atlantic in 1856 Deep descent

Launched this year, the project aims to further investigate the wreck and its cargo using a remotely operated underwate...