An offshore wind turbine comprising a buoyancy structure intended to provide a buoyancy force to support the wind turbine, wherein said buoyancy structure comprises at least one floater tank and a damping structure extending radially outward from the floater tank to damp forces due to heave, pitch or roll. The first detector is provided to a first wheel in a first position in a vehicle. All gaming functions are carried out by a stationary gaming terminal communicating with the mobile device, such as by using WiFi. The coating covers the membrane, but does not fill the plurality of micropores.