The tidal cycle refers to the regular rise and fall of sea levels caused by the gravitational pull of the Moon and the Sun on the Earth's oceans. This cycle typically occurs twice a day, resulting in two high tides and two low tides within a 24-hour period. The timing and height of these tides can vary based on the position of the Moon and Sun, as well as local geographical features. Tides are influenced by several factors, including the alignment of the Earth, Moon, and Sun, which can create spring tides (higher high tides) and neap tides (lower high tides). Understanding the tidal cycle is essential for various activities, such as fishing, boating, and coastal management.