As you probably know, Greek mythology has many, many gods. There are gods who made the earth, other gods of war, gods of the winds, and gods of the waters. The gods of the waters were in many adventures.
Greek mythology has many gods of the waters.
He was the leader and ruler of the Mediterranean sea and the Black sea which many people called the friendly sea. Poseidon ruled the underground rivers. He took care of them and could also control them. He could tell what the future was going to be like and could change into different shapes. Many people thought he was Poseidons' son.