+Hydrography is the art and science of mapping waters, charting the depths, currents, and physical features of oceans, lakes, and rivers. This vital work underpins safe [Navigation](/wiki/navigation) and reveals the unseen landscapes beneath the surface. It is a specialized branch of [Cartography](/wiki/cartography), crucial for maritime activity and environmental understanding.
+## See also
+- [Oceanography](/wiki/oceanography)
+- [Bathymetry](/wiki/bathymetry)
+- [Hydrology](/wiki/hydrology)
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