Firing exercises will take place at Castlemartin Firing Range from 20th May - 19th June 2026, excluding the period between 22nd May – 25th May 2026 & weekends.
1. MARINERS ARE HEREBY ADVISED, that a military training firing exercise by the Ministry of Defence (MOD) will be conducted at the Castlemartin Firing Range, within the Sea Danger Area (SDA).
2. The exercise will take place from 20th May -19th June 2026, between 0800 and 0300 GMT daily (excluding the period between 22nd May – 25th May 2026 & weekends).
3. The Sea Danger Area is bound by the following positions (WGS84 Datum). (The approximate area of operations is illustrated in the Chartlet below).
|
Point |
Latitude (N) |
Longitude(W) |
Point |
Latitude (N) |
Longitude(W) |
|
A |
51°39.131’N |
005°03.548’W |
G |
51°33.878’N |
005°07.825’W |
|
B |
51°39.584’N |
005°04.730’W |
H |
51°32.064’N |
005°03.925’W |
|
C |
51°39.615’N |
005°08.580’W |
I |
51°31.392’N |
004°59.850’W |
|
D |
51°37.755’N |
005°10.618’W |
J |
51°33.065’N |
004°55.195’W |
|
E |
51°36.551’N |
005°10.391’W |
K |
51°33.722’N |
004°54.868’W |
|
F |
51°35.254’N |
005°09.561’W |
L |
51°35.785’N |
004°55.573’W |
4. All mariners are hereby advised to navigate with caution and keep well clear of the defined boundaries. Anchoring or drifting within the area is strictly prohibited during the operational period stated above.
5. Admiralty Charts for reference 2878, 3273.
6. For Further details please contact Range Control (Call sign: Castlemartin Range Control) on VHF Ch16 or call 01646 662367
7. This Notice to Mariners will self-cancel at 23:59 on 19th June 2026.
BY ORDER
M RYAN
HARBOURMASTER
MILFORD HAVEN PORT AUTHORITY
Port of Milford Haven
Gorsewood Drive
Milford Haven
SA73 3EP 15th May 2026
Tel: 01646 696100
Email: enquiries@mhpa.co.uk
Chartlet of Castlemartin Firing Area
(Note: The boundaries shown in the chartlet are for approximate visual reference only and must not be used for navigation.)