A Hydrographic Note is used to notify the Australian Hydrographic Office (AHO) when new or suspected dangers to navigation are discovered, changes are observed in aids to navigation, port infrastructure, or corrections to publications are seen to be necessary.
The Australian Hydrographic Office (AHO) manages undersea feature and maritime names information as part of Australia’s place and geographic names framework. To submit a naming proposal for undersea, maritime, navigational, hydrographic or oceanographic features outside coastal waters, complete the attached Hydrographic Undersea Feature Name Proposal form.