Tides are the regular rise and fall of sea levels caused by the gravitational forces exerted by the Moon and the Sun on the Earth's oceans. This phenomenon occurs in a predictable pattern, typically resulting in two high tides and two low tides each day, influenced by the positions of these celestial bodies. The height and timing of tides can vary significantly based on geographical location, local topography, and weather conditions. Understanding tides is crucial for navigation, fishing, and coastal management, as they affect marine ecosystems and human activities along coastlines.