Caernarfon Notice to Mariners 13/2020
Aid to navigation Llanddwyn Island “South West Rock” South Cardinal Y.B is not on its appropriate station.
53° 07.810’ N 004° 25.060 W
Mariners are advised to navigate with caution in this area.
David John O’Neill
Harbwr Feistr Caernarfon Harbour Master