World Hydrography Day
The Hydrographic Offices and agencies of France, Germany, Netherlands, Norway, Sweden and the UK are among leading European organisations expected to mark the UN sponsored World Hydrography Day on 21 June with a series of commemorative functions.
The Hydrographic Offices and agencies of France, Germany, Netherlands, Norway, Sweden and the UK are among leading European organisations expected to mark the UN sponsored World Hydrography Day on 21 June with a series of commemorative functions.
