The swing ground navigation buoy S1 marking the Southwest edge of South Hook Swinging Ground is reported that the light is unreliable.

  1. MARINERS ARE HEREBY ADVISED that, S1 Navigation Buoy, in approx. position 51º 41'.64 N 005º 05'.78 W marking the Southwest edge of South Hook Swinging Ground, and having characteristics of Quick Green (QG) light has been reported that the light is unreliable.
  2. Mariners are required to navigate with caution in the area.
  3. Admiralty charts 2878, 3273, 3274, 8206 and Imray Y26 & 2600 ATLAS refer.
  4. A  further notice will be promulgated when the issue has been resolved.