A vessel (1) for cleaning a submerged structure, the vessel (1) including a buoyancy means (2), the vessel (1) being provided with : - at least one guide (4) for contact against a buoyancy body of the submerged structure； - at least one drum (29) provided with a conduit (3) for a pressurized fluid； - a motor for driving a pump for the pressurized fluid and for driving the drum (29)； and - a cleaning device (6) connected to the free end portion (30) of the conduit (3)
