Notice to Mariners

Notice to Mariners No.110 of 2020 - Diving Operations Wear Spit to Pembroke Reach


1. MARINERS ARE HEREBY ADVISED that, on Monday 23rd & Tuesday 24th November 2020, diving will take place on the following navigational beacons:

  • Dockyard Bank Beacon (51°42.10’N 004°57.23’W)
  • Carr Spit Beacon (51°42.08’N 004°57.85’W)
  • Pennar Beacon (51°41.63’N 004°57.77’W)
  • Wear Spit beacon (51°41.79’N 004°58.82’W

2. The support vessel “ALEC D” will be in attendance and will maintain a listening watch on VHF Channel 12 throughout. 


3. The International Code of Signals flag “ALPHA” will be displayed at all times when divers are in the water.

4. Mariners are required to slow down, make minimum wash and navigate with caution giving the dive operations a wide berth.


5. Admiralty chart 3275 and IMRAY Y26 and 2600 Atlas refer.

6. This notice will self-cancel at 23:59 Tuesday 24th November 2020.



Port of Milford Haven
Gorsewood Drive
Milford Haven
SA73 3EP

Tel: 01646 696100

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