Nautile is a crewed submersible owned by Ifremer, the French Research Institute for Exploitation of the Sea.

This makes it easier to inspect, image, and gather materials from areas otherwise unaccesible to the vehicle.

[1] Without the need for a physical link to support its operation, the submersible can be readily deployed in a variety of environments.

It's most commonly used to survey specific areas, collect samples, and assist in the investigation and recovery of wrecks.

[4] Equipped with CCD type cameras, ROBIN is only 60 x 50 x 50 cm large and weighs 130 kg.