Notice to Mariners – North Cornwall Coast – Vicinity Wave Hub Buoy Posted on October 7, 2013 at 12:00 am. This Notice cancels Wave Hub’s previous Notice to Mariners issued on 30th September 2013: Please be advised that the Wave Hub SW special mark (charted position 50 deg 20.70’N 05 deg 37.24’W) previously reported missing has been recovered. A further Notice to Mariners will be issued when it is re-deployed in its charted position.