Mariners are requested to inform Hong Kong Hydrographic Office discovery of new dangers to navigation, or changes or defects of aids to navigation.

Date

Ref.

Name of Vessel.

Name of Observer/Reporter

Correspondence Address

Email Address *

Approx. Position

Latitude    

°

.

'N

Longitude

°

.

'E

Geographical Position
(if applicable)

Subject *

Detail *

Chart(s) Affected

Latest Notices to Mariners Held

Publication(s) Affected
(edition number and date of latest supplement)

* Required Field