Mediterranean Sea - Western Basin
IHO sea area 28A · -2° to 12° E, 36° to 44° N
- in force
- 2
- last 12 months
- 2
- since 1998
- 1,207
- categories
- 11
In force now · 2
- NAVAREA III 100/26 · Towing2026-06-27Towed target shooting exercise in western Mediterranean Sea on October 29 or 30, 2026, within a defined area; canceled by October 31.
- HYDROLANT 1235/26 · Exercises2026-06-25Hazardous operations are taking place in the western Mediterranean Sea off Spain from 29 to 30 October, until cancelled on 31 October.
Longest in force
- HYDROLANT 1235/26 · Exercises2026-06-25Hazardous operations are taking place in the western Mediterranean Sea off Spain from 29 to 30 October, until cancelled on 31 October.
- NAVAREA III 100/26 · Towing2026-06-27Towed target shooting exercise in western Mediterranean Sea on October 29 or 30, 2026, within a defined area; canceled by October 31.
By year
98
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00
01
02
03
04
05
06
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08
09
10
11
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16
17
18
19
20
21
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26
By month (all years)
J
F
M
A
M
J
J
A
S
O
N
D
By category · since 1997
| Exercises | 388 | 32% |
| Nav aids | 261 | 22% |
| Surveys | 194 | 16% |
| Cable ops | 163 | 14% |
| Derelicts | 85 | 7% |
| Other | 59 | 5% |
| Containers | 26 | 2% |
| Debris | 15 | 1% |
| Wrecks | 11 | 1% |
| Missiles | 4 | 0% |
| Towing | 1 | 0% |
Archive · 1,205 cancelled
- HYDROLANT 2574/21 · Nav aids2021-10-19 → 2021-10-22Ras afia light 36-49.0N 005-41.4E unreliable
- HYDROLANT 2541/21 · Nav aids2021-10-15 → 2021-12-02Cap falcon light 35-46.3N 000-48.1W temporarily changed to f w
- HYDROLANT 2536/21 · Surveys2021-10-14 → 2021-10-27Underwater operations 151800Z to 271800Z oct in area bound by 38-55N 009-15E, 38-45N 009-15E, 38-45N…
- HYDROLANT 2522/21 · Surveys2021-10-13 → 2021-10-19Survey operations in progress until 18 oct by M/V thetys II and M/V l europe in area bound by 43-19.98N…
- HYDROLANT 2521/21 · Surveys2021-10-13 → 2021-10-16Underwater operations 130800Z to 161800Z oct in area bound by 42-08.91N 006-40.67E, 42-09.27N 008-00.33E,…
- HYDROLANT 2520/21 · Surveys2021-10-12 → 2021-10-16Underwater operations in progress until 152359Z oct in area bound by 42-10.14N 006-40.46E, 42-10.14N…
- HYDROLANT 2453/21 · Exercises2021-10-02 → 2021-10-22Hazardous operations 0530Z to 1530Z daily 04 thru 22 oct except saturdays and sundays in area bound by…
- HYDROLANT 2412/21 · Exercises2021-09-27 → 2021-10-01Hazardous operations 282000Z sep to 012000Z oct in area bound by 36-33.17N 000-55.40W, 36-04.06N 001-57.18W,…
- HYDROLANT 2366/21 · Surveys2021-09-20 → 2021-10-17Underwater operations 22 sep thru 16 oct by M/V dalla porta in area bound by 37-34N 011-14E, 37-23N 011-36E,…
- HYDROLANT 2359/21 · Exercises2021-09-19 → 2021-09-23Hazardous operations 210600Z to 211800Z, 220600Z to 221000Z and 230600Z to 231000Z sep in area bound by…
- HYDROLANT 2318/21 · Exercises2021-09-13 → 2021-09-15Hazardous operations 141900Z to 150200Z sep in area bound by 42-10.0N 006-40.0E, 42-10.0N 007-46.5E,…
- HYDROLANT 2316/21 · Exercises2021-09-13 → 2021-09-17Hazardous operations 141100Z to 141600Z and 161700Z to 162300Z sep in area bound by 42-10.0N 006-40.0E,…
- HYDROLANT 2284/21 · Surveys2021-09-08 → 2021-09-19Survey operations 10 thru 18 sep by M/V thetys II and M/V l`europe in area bound by 43-19.98N 007-48.96E,…
- HYDROLANT 2267/21 · Cable ops2021-09-05 → 2021-09-16Underwater operations in progress until 152359Z sep by cableship raymond croze in area bound by 38-11.80N…
- HYDROLANT 2230/21 · Cable ops2021-08-30 → 2021-09-05Underwater operations 011400Z sep until further notice by cableship raymond croze in area bound by 38-11.80N…
- HYDROLANT 2196/21 · Surveys2021-08-26 → 2021-09-06Survey operations 28 aug thru 05 sep by M/V dalla porta in area bound by 41-20.54N 009-46.56E, 41-19.72N…
- HYDROLANT 2154/21 · Exercises2021-08-20 → 2021-08-24Hazardous operations 240600Z to 241200Z aug in area bound by 38-19N 008-29E, 38-19N 009-25E, 38-00N 009-25E,…
- HYDROLANT 2109/21 · Exercises2021-08-16 → 2021-08-17Hazardous operations 170700Z to 171200Z aug in area bound by 38-19N 008-29E, 38-19N 009-25E, 38-00N 009-25E,…
- HYDROLANT 2091/21 · Surveys2021-08-11 → 2021-08-27Survey operations 13 thru 26 aug in area bound by 43-19.98N 007-48.96E, 43-19.98N 007-57.00E, 43-27.00N…
- HYDROLANT 2023/21 · Nav aids2021-08-03 → 2022-03-31Cap bengut light 36-55.3N 003-53.6E unlit
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.