Cangshan is close to the sea, so it is called Cang, not Cang.
The sea is the sea of sharks, and it was the ancestral land of the sharks in ancient times. It has been thousands of years since the sharks shed tears and turned into beads. In ancient times, the sharks did not intermarry with other tribes, their blood was pure, and their tears turned into jade. The jade is Cangshan jade. After the sharks shed tears, they picked up the jade and threw it on the island in the sea. Over time, it turned into a jade mountain.
The vicissitudes of the sea have passed, and the white horse has passed. Tens of thousands of years later, the Shark tribe moved away from the Shark Sea and intermarried with hundreds of tribes on the shore. Their bloodline was no longer pure, and their racial heritage was gradually lost. The ancient road leading to the Shark Sea simply disappeared in time and space.