FERRY TRAFFIC Ferries operating to/from Loch Ryan Port and the Port of Cairnryan transit using the deeper water found in the anchoring prohibited area. Due to the high concentration of ferry traffic, including high speed craft, it is recommended that vessels maintain a listening watch on VHF in order to receive prior warning of ferry movements. See Admiralty List of Radio Signals for further details. Some high speed ferries may generate large waves, which can have a serious impact on small craft and their moorings close to the shoreline and on shallow off-lying banks. For further details, see Annual Notice to Mariners Number 23.