MDN 65/2026

SÉCURITÉ

Submarine cable laying and diving operations from Chung Hom Kok to SE Hong Kong boundary

No longer in forceReceived 09 Apr 2026, 00:00 UTCArchived 09 Nov 2026, 13:07 UTC

Warning text

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MARINE DEPARTMENT NOTICE NO. 65/2026 (Marine Works) Submarine Cable Laying Operations from Chung Hom Kok to Southeastern Boundary of Hong Kong Special Administrative Region With immediate effect and for a period of approximately seven months, submarine cable laying operations will be carried out along the following co- ordinates (WGS 84 Datum) from (A) to (AO): (A) 22-12.77N 114-12.26E (B) 22-12.71N 114-12.14E (C) 22-12.10N 114-12.00E (D) 22-11.96N 114-12.02E (E) 22-11.76N 114-12.08E (F) 22-11.56N 114-12.25E (G) 22-11.23N 114-12.44E (H) 22-11.15N 114-12.56E (I) 22-10.87N 114-12.63E (J) 22-10.62N 114-12.62E (K) 22-10.44N 114-12.78E (L) 22-10.26N 114-13.03E (M) 22-09.64N 114-13.74E (N) 22-09.46N 114-14.01E (O) 22-09.44N 114-14.06E (P) 22-09.42N 114-14.28E (Q) 22-09.39N 114-14.36E (R) 22-09.17N 114-14.74E (S) 22-09.11N 114-14.91E (T) 22-09.07N 114-15.23E (U) 22-09.13N 114-15.94E (V) 22-09.48N 114-17.79E (W) 22-09.64N 114-18.89E (X) 22-09.98N 114-20.18E (Y) (Z) 22° 10.027’N 22-10.00N 114-20.61E 114° 21.030’E (AA) (AB) (AC) (AD) (AE) (AF) (AG) (AH) (AI) (AJ) (AK) (AL) (AM) (AN) (AO) 22° 09.946’N 22° 09.810’N 22° 09.717’N 22° 09.531’N 22° 09.391’N 22° 09.314’N 22° 09.277’N 22° 09.555’N 22° 09.547’N 22° 09.642’N 22° 09.659’N 22° 09.724’N 22° 09.705’N 22° 09.619’N 22-09.51N 114-21.16E 114° 21.279’E 114° 21.314’E 114° 21.335’E 114° 21.390’E 114° 21.458’E 114° 21.561’E 114° 26.131’E 114° 27.035’E 114° 29.072’E 114° 29.418’E 114° 29.819’E 114° 29.969’E 114° 30.082’E 114° 30.147’E 2. The works will be carried out by one special purpose vessel, one flat- top work barge and one dumb lighter. Two tugboats and one transportation boat will provide assistance. The number of vessels engaged in the works will change from time to time to suit operational requirements. Vessels engaged in the works will display signals as prescribed in international and local regulations. 3. The hours of work will be round-the-clock. A working area of approximately 100 metres around the working vessels will be established. Yellow marker buoys fitted with yellow flashing lights will be laid to mark the positions of the anchors extending from the working vessels. 4. Diving operations will be carried out from time to time during the hours of work. Vessels navigating in the vicinity should proceed with caution and keep clear of the works area at slow speed, bearing in mind that there are divers working in the area. 5. A drawing showing the cable alignment is attached to this Notice. Mr. S.F. WONG Director of Marine Marine Department Government of the HKSAR Date: 9 April 2026 Action File Ref.: L/M No. 8/26 in MD-PD&PS-F01-075-01A-001A-P093

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Analysis

No longer in force

Submarine cable laying operations are underway from Chung Hom Kok to the southeastern boundary of the Hong Kong SAR. Works commenced with immediate effect on 9 April 2026 and will continue for approximately seven months, carried out round-the-clock. A working area of about 100 metres around the working vessels will be established; yellow marker buoys with yellow flashing lights will mark anchor positions and diving operations will take place from time to time. Mariners should proceed with caution and keep clear at slow speed because of vessels, anchors and divers.

Type: Cable / pipeline work · severity moderate
Feed: Cable and pipeline operationsAll warnings of this kind on the map, or as an API feed.
Location: From Chung Hom Kok to the southeastern boundary of the Hong Kong SAR
Validity: From 09 Apr 2026, 00:00 UTC
Until 09 Nov 2026, 00:00 UTCWith immediate effect and for a period of approximately seven months
Activity periods: 09 Apr 2026, 00:00 UTC - 09 Nov 2026, 00:00 UTC (round-the-clock)
Hazards: submarine cable laying, anchors, diving operations, marker buoys

Position check: the text also mentions 22° 09.277’N 114° 26.131’E, 22° 09.555’N 114° 27.035’E, 22° 09.547’N 114° 29.072’E, 22° 09.642’N 114° 29.418’E, 22° 09.659’N 114° 29.819’E, 22° 09.724’N 114° 29.969’E, 22° 09.705’N 114° 30.082’E, 22° 09.619’N 114° 30.147’E, which may not be drawn on the map. Check the original text.

Worked out automatically from the warning text on 30 Sept 2026, 11:12 UTC. It can be wrong: the official warning text is the authority.

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This warning's analysis also has:

Action for mariners
Keep-clear distance
Ships named
Lights and buoys affected
Translations
Nearby lights and rescue centres

The action for mariners, the keep-clear distance, contacts, ships named, translations and the nearby lights and rescue centres come with Lagom and every higher plan, and with the API plans. The official warning text above is always free.

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Keywordscable laying cable laying operation diving operations divers working keep clear of

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