Hydrography is the science that studies the physical features of bodies of water, including oceans, rivers, and lakes. It involves mapping and analyzing the depth, shape, and flow of water, which helps in understanding water resources and navigation. Hydrography is essential for safe maritime travel and for managing water-related activities. Hydrographic surveys are conducted using various tools and technologies, such as sonar and satellite imagery. These surveys provide crucial data for environmental management, flood control, and coastal development. Accurate hydrographic information supports activities like fishing, shipping, and recreational boating, ensuring safety and sustainability in water use.