Diamond on the Silk Road (Documentary)

This documentary film tells the story of an oldest harbor on the northern coast of Sumatra. The harbor is famous as one of the import-export ports in the maritime Silk Road in ancient times. It is not far from a notical point at the northeastern tip of the island of Sumatra called the diamond point.

https://www.youtube.com/watch?v=VJGznP3YhZM