During the summer of 2021, SEENEOH in partnership with Universiťe Bretagne Sud and Morbihan Hydro Energies carried out a Bathymetry campaign of the sea bed in the Gulf of Morbihan.

As a result they have acquired bathymetric and imaging data for the study of the Gulf of Morbihan. This study concerns the preparation of the installation of the two Sabella innovative turbines in the Gulf of Morbihan.

The study area is located at the entrance to the Gulf of Morbihan. More precisely, to the west and north of the Pointe du Monteno in Arzon. The area is characterised by the seabed varying from depths greater than -25 m to a foreshore uncovered at low tide.

The objective of this work is to be able to access a fine measurement of the seabed in order to adapt the design of the gravity bases and to anticipate the preparation of the deployment of the turbines. The measurements will also enable bathymetric differentials to be carried out, which will make it possible to follow the evolution of the seabed over time. This also allows conclusions to be drawn on the absence of sediment issues in the area.