Underwater features refer to the various natural formations found beneath the surface of oceans, seas, and lakes. These include structures like mountains, valleys, canyons, and volcanoes, which can significantly influence marine ecosystems. The ocean floor is also home to coral reefs, seamounts, and trenches, each playing a crucial role in supporting diverse marine life. Understanding underwater features is essential for navigation, marine biology, and environmental conservation. For instance, submarine canyons can affect ocean currents, while hydrothermal vents provide unique habitats for specialized organisms. Mapping these features helps scientists study ocean dynamics and the impact of human activities on marine environments.