According to Exodus 14, the Israelites crossed the Red Sea after leaving Egypt.
The biblical account says Moses stretched out his hand over the water, and a strong east wind divided the sea. The Israelites crossed on dry ground, while Pharaoh’s pursuing army entered the passage. When Moses stretched out his hand again, the waters returned and covered the Egyptians.
The event is central to the Exodus story and is often called the crossing of the Red Sea. The Hebrew expression traditionally translated as “Red Sea” is Yam Suph, which some modern scholars interpret as referring to a marshy or reed-filled body of water rather than the present-day Red Sea. English Bible translations nevertheless commonly use “Red Sea.”
This episode is distinct from later references to the Israelites crossing the Jordan River under Joshua. It is also different from the Sea of Galilee and the Dead Sea, both of which are associated with later biblical geography, not the escape from Egypt.