MDN 241/2025

Low-altitude drone operations over Deep Bay waters

ExpiredReceived 20 Nov 2025, 00:00 UTC

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MARINE DEPARTMENT NOTICE NO. 241/2025 (Navigation Warnings & Related Information) Drone Operations at the waters of Deep Bay With immediate effect and for a period of approximately three months, low altitude drone operations will be conducted over the waters of Deep Bay. 2. The operating area at the waters of Deep Bay is formed with straight line joining the following co-ordinates (WGS 84 Datum) from (A) to (D) and the adjacent shoreline: Latitude Longitude (A) 22-28.01N 113-58.86E (B) 22-28.92N 113-57.77E (C) 22-29.26N 113-58.16E (D) 22-28.34N 113-59.10E 3. During the aforementioned period, Masters, coxswains and persons-in- charge of all vessels navigating in the vicinity should be aware of the said operations and navigate with caution. 4. A drawing showing the operating area is attached to this Notice. Mr. S.F. WONG Director of Marine Marine Department Government of the HKSAR Date: 20 November 2025 Action File Ref.: L/M. No. 1286/25 in MD-HPS-F01-015-04B-002

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Analysis

Expired

From 20 November 2025 the Hong Kong Marine Department advised that low-altitude drone operations will be conducted over the waters of Deep Bay. The operating area is bounded by straight lines joining four WGS‑84 coordinates and the adjacent shoreline. Masters and coxswains are asked to be aware of the operations and navigate with caution. A drawing of the operating area is attached to the notice.

Type: Offshore operations · severity moderate
Feed: Offshore works, rigs and towingAll warnings of this kind on the map, or as an API feed.
Location: Deep Bay (waters of Deep Bay)
Validity: From 20 Nov 2025, 00:00 UTC
With immediate effect and for a period of approximately three months
Hazards: low-altitude drone operations

Worked out automatically from the warning text on 30 Sept 2026, 11:38 UTC. It can be wrong: the official warning text is the authority.

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