3694/2026

Exclusion zones and 300 m safety zone off Les Préfailles, Pornic, 31 Oct-16 Nov 2026

Activeuntil 16 Nov 2026, 23:59 UTC (in 15 days)Received 29 Oct 2026, 10:57 UTC

Warning text

Lang

Area: YEU Locality: Les Préfailles, PORNIC Valid from 31 Oct 2026 to 16 Nov 2026 EXCLUSION_ZONES In accordance with Maritime Prefect of the Atlantic decree No. 2026/175 of 19 October 2026; - anchoring of any vessel or craft, the use of set/fixed fishing gear and scuba diving are prohibited within the perimeter defined by BLOCK A zone bounded by: 47-07.45N 002-11.73W 47-07.30N 002-10.55W 47-05.80N 002-11.09W 47-05.37N 002-11.60W 47-05.57N 002-12.79W 47-06.17N 002-12.19W - swimming and scuba diving are prohibited within the perimeter defined by BLOCK B zone bounded by: 47-07.47N 002-11.92W 47-07.28N 002-10.36W 47-06.50N 002-10.63W 47-06.75N 002-12.18W - navigation, anchoring and any other nautical activity are prohibited around the vessel D-TECT cited in Annex II, when it is conducting operations in the study area defined in Annex I, within a radius of 300 meters around it. The full decree 2026/175 is available on the Maritime Prefect of the Atlantic website www.premar-atlantique.gouv.fr and on PING.

Analysis

Activeuntil 16 Nov 2026, 23:59 UTC (in 15 days)

Decree 2026/175 establishes exclusion zones off Les Préfailles and Pornic. From 31 Oct to 16 Nov 2026 anchoring, fixed fishing gear and scuba diving are prohibited inside Block A; swimming and scuba diving are prohibited inside Block B. Additionally, when the vessel D-TECT is conducting operations in the study area, navigation, anchoring and any other nautical activity are prohibited within 300 metres of that vessel. Full decree available on the Maritime Prefect of the Atlantic website.

Do not navigate, anchor, deploy fixed fishing gear, swim or scuba dive inside the named exclusion zones. When D-TECT is operating, keep at least 300 m clear and avoid all nautical activity in that radius. Consult the Maritime Prefect website for the full decree.

Type: Restricted area · severity moderate
Feed: Security and restricted areasAll warnings of this kind on the map, or as an API feed.
Location: Les Préfailles, PORNIC (area YEU)
Validity: From 31 Oct 2026, 00:00 UTC
Until 16 Nov 2026, 23:59 UTCValid from 31 Oct 2026 to 16 Nov 2026
Activity periods: 31 Oct 2026, 00:00 UTC - 16 Nov 2026, 23:59 UTC (continuous between these dates (local exclusion zones in force))
Hazards: exclusion zone (Block A), exclusion zone (Block B), prohibited anchoring, prohibited fixed fishing gear, prohibited swimming and scuba diving, 300 m safety zone around vessel D-TECT during operations
Keep clear: 0.162 NMwithin a radius of 300 meters around it.

Contacts

www.premar-atlantique.gouv.fr · Maritime Prefect of the Atlantic website
PING · publication system referenced

Vessels involved

D-TECT · operations vessel

Coast stations for this area

RCCMRCC EtelFranceMMSI 00227500052 NM from the area
RCCMRCC JobourgFrance154 NM from the area
RCCMRCC FalmouthUnited KingdomMMSI 002320014181 NM from the area
DSCDSC Station KerrouaultMRCC EtelFranceMMSI 002275000VHF 33range 33 NM23 NM from the area
DSCDSC Station Ile D’YeuMRCC EtelFranceMMSI 002275000VHF 24range 24 NM26 NM from the area
DSCDSC Station ArmandecheMRCC EtelFranceMMSI 002275000VHF 21range 21 NM28 NM from the area
DSCDSC Station Belle IleMRCC EtelFranceMMSI 002275000VHF 27range 27 NM44 NM from the area
DSCDSC Station EtelMRCC EtelFranceMMSI 002275000VHF 26range 26 NM52 NM from the area

Worked out automatically from the warning text on 29 Oct 2026, 11:07 UTC. It can be wrong: the official warning text is the authority.

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