Hydrography Data

Show a land mass, other than a continent, surrounded by water.

Show a large body of water entirely surrounded by land.

Show on a shore, the area on which the waves break and over which shore debris (for example: sand, shingle, and/or pebbles) accumulate. A beach includes backshore and foreshore. See also Features: 'Nearshore', 'Backshore', and 'Foreshore'.

Show an excavation drilled or dug into the ground (for example: the sea bed) for the extraction of liquids and/or gases.

Shows a structure that protects a waterbody region (for example: a shore, a harbour, and/or an anchorage) from water waves by preventing them from reaching the protected region or reducing their magnitude.

Show a natural or artificial improved body of water providing protection for vessels and generally anchorage and docking facilities.

Show a structure primarily used as a berthing place for vessels.

Show the ruined remains of a stranded or sunken vessel that has been rendered useless.

Shows an enclosed channel for carrying a watercourse (for example: a stream, a sewer, or a drain) under a route (for example: a road, a railway, or an embankment). Usually the construction of the route is unaffected.

Show an isolated rocky formation or a single large stone or coral, usually one constituting a danger to navigation.