Tidal waters refer to areas where the rise and fall of sea levels are influenced by the gravitational pull of the moon, sun or other celestial bodies. These areas experience a regular inflow and outflow of water due to the tides, which can cause changes in the level of the water, currents, salinity, temperature, and dissolved oxygen levels. Tidal waters are typically found along coastlines where there is an interaction between land and sea, such as estuaries, bays, gulfs, sounds, and straits. The term "tidal" refers to the periodic rise and fall of sea levels caused by the gravitational forces exerted by celestial bodies on Earth's oceans.