The main optimizations are as follows:

    •    Language: Added Chinese annotations to help users better understand the chart content.

    •    Colour : Adjusted the layout colours, and the number of colours indicating depth range has also increased from four to six for easier reference.

    •    Improved Readability: Contours are labelled with respective depth

(Date of Issue: 6 August 2026)

The Hydrographic Office of the Marine Department shall discontinue its Differential Global Positioning System (DGPS) correction service effective from 1 January 2027. For details, please refer to the Marine Department Notice No. 16/2026.

(Date of Issue: 30 January 2026)

The Hydrographic Office of Marine Department has launched the Marine Spatial Data Infrastructure Portal (“the Portal”) (28 January 2026). The Portal allows the public to view the locations and information of marine services and facilities, entry restricted areas, height restricted areas and speed restricted areas within Hong Kong waters. It also provides a search function to facilitate the search of marine facilities. You are welcome to visit the Portal at msdi.hydro.gov.hk.

(Date of Issue: 28 January 2026)

The 7th edition of Hong Kong paper chart HK0802 is available now.

(Date of Issue: 22 December 2025)

Recently, fraudsters have been impersonating the Marine Department by sending fraudulent emails that invite recipients to participate in procurement exercises. The emails enclosed a TAR-format attachment which is suspected to contain malicious software.

The Hydrographic Office of Marine Department has no connection with the phishing emails. Please be reminded not to open any suspicious email.

For any enquiries, please contact our service hotline at 852-2504 0130.

(Date of Issue: 25 November 2025)

The 5th edition of Hong Kong paper chart HK2502 is available now.

(Date of Issue: 3 October 2025)