World Hydrographic Day

World Hydrographic Day is celebrated on June 21 each year to raise awareness about the importance of hydrography—the science of mapping and understanding bodies of water. It highlights the role of hydrography in safe navigation, environmental protection, and understanding ocean dynamics. The day encourages cooperation and advancements in hydrographic practices, promoting efficient management of marine resources. Events and activities are organized globally to celebrate the contributions of hydrographers and to emphasize the significance of accurate marine data for shipping, fishing, and conservation efforts.