Wind farm crew transfer vessel 'Caernarfon Bay' built by UK shipbuilders South Boat Special Projects Ltd. South Boats Special Projects Ltd. announce the launch and commissioning of its 57th offshore wind farm crew transfer vessel, ‘Caernarfon Bay’. The vessel is the first of the South Catamaran 19m WFSV designs to be delivered and features a host of developments. Built for Turbine Transfers Ltd. the vessel has passaged to a contract in the German North Sea following successful trials and acceptance.