The Mountain God vs The Lord of the Waters

Hùng Duệ Vương, the 18th king of the Hồng Bàng dynasty, had a very beautiful daughter named Mỵ Nương. When she became a woman, the King began his search to arrange for her marriage. He wanted to find a special son-in-law, someone who was intelligent, handsome, and talented. To find such an individual, the King held an official contest. Anyone who could prove his worthiness, would be given the hand of his daughter. Princes, scholars, famous writers, gifted artists, wealthy merchants, and men with various talents from everywhere came to try their best. Among them were two extraordinary men: Sơn Tinh - the Mountain God, and Thủy Tinh - the Lord of the Waters.

The King requested both to showcase their powers. Sơn Tinh made a gesture with his hand in the air and trees instantly sprouted from the earth into a forest. With a magic word, mountains rose. Thủy Tinh powers were no less impressive. When a wave of his hand, gust winds began to blow at ease. With a single word, the sea level elevated.

However, as both met all the criteria required to become Mỵ Nương's husband, it was difficult to choose between them. Eventually, the King decided to present one final challenge. The first man to arrive with selected wedding gifts the next morning would be granted permission to marry the princess. These unique wedding gifts included a nine-tusk elephant, a nine-spur cockerel, and a nine-mane horse - specialities all found on the earth and not the sea, a clear disadvantage for Thủy Tinh. Early the next morning, Sơn Tinh arrived first, married Mỵ Nương and took her back to the Tản Viên Mountain, where he lived.

Thủy Tinh came a few moment afterwards. Upon realizing that he was too late, he became extremely furious. He and his servants chased after Sơn Tinh. Unwilling to accept defeat, he summoned torrential rain, gusty winds, thunder and lightning, and also brought the sea higher, to defeat Sơn Tinh. However, as the sea rose, Sơn Tinh used his magic to raise the height of mountains as a counter-measure. Everyone suffered the rage of Thủy Tinh as the floods he caused destroyed land, crops, and houses. To protect the people, their properties, and belongings, Son Tinh created dikes to shield them from the rising sea.

This battle between the two Lords lasted for countless days but eventually, Thủy Tinh became weary and lowered the sea. He never, however, forgave Sơn Tinh nor let go of his desire for revenge to get Mỵ Nương back. Thus, every year, people have to suffer floods as a consequence of Thủy Tinh's eternal vindictiveness.