MDN 125/2026

Marine site investigation southeast of Sunshine Island - jack-up barges for ~6 months

Activeuntil 03 Jan 2027, 00:00 UTC (in 49 days)Received 03 Jul 2026, 00:00 UTC

Warning text

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MARINE DEPARTMENT NOTICE NO. 125/2026 (Marine Works) Marine Site Investigation to the Southeast of Sunshine Island With immediate effect and for a period of approximately six months, marine site investigation works involving drilling of boreholes will be carried out within the area bounded by straight lines joining the following co-ordinates (WGS 84 Datum) from (A) to (D): (A) 22-15.68N 114-03.44E (B) 22-15.47N 114-03.89E (C) 22-15.16N 114-03.52E (D) 22-15.40N 114-03.06E 2. The works will be carried out by four jack-up barges. Two tugboats will provide assistance. Vessels engaged in the works will display signals as prescribed in international and local regulations. 3. A working area of approximately 50 metres around each jack-up barge will be established. Yellow flashing lights will be installed at the four corners of each jack-up barge to indicate its position. 4. The hours of work will be from 0700 to 1900 hours. No works will be carried out on Sundays and public holidays. Vessels employed for the works will stay in the works area outside the hours of work. 5. Vessels navigating in the vicinity should proceed with caution. 6. A drawing showing the works area is attached to this Notice. Mr. S.F. WONG Director of Marine Marine Department Government of the HKSAR Date: 3 July 2026 Action File Ref.: L/M. No. 9/26 in MD-PD&PS-F01-075-01A-003-P074

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Analysis

Activeuntil 03 Jan 2027, 00:00 UTC (in 49 days)

Marine site investigation involving drilling of boreholes will be conducted southeast of Sunshine Island within a polygon defined by four positions. Works began with immediate effect from 3 July 2026 and will continue for approximately six months. Four jack-up barges and two tugboats will be employed; 50 metre working areas around each barge will be established and marked by yellow flashing lights. Working hours 0700-1900 daily, with no works on Sundays and public holidays.

Type: Survey operations · severity moderate
Feed: Survey operationsAll warnings of this kind on the map, or as an API feed.
Location: Southeast of Sunshine Island
Validity: From 03 Jul 2026, 00:00 UTC
Until 03 Jan 2027, 00:00 UTCWith immediate effect and for a period of approximately six months. Hours of work will be from 0700 to 1900 hours. No works will be carried out on Sundays and public holidays.
Activity periods: ? - ? (Daily 0700-1900 hours; no works on Sundays and public holidays (times given in notice, no timezone offset stated).)
Hazards: marine site investigation (borehole drilling), jack-up barges, tug assistance, working area around barges

Worked out automatically from the warning text on 30 Sept 2026, 10:50 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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