I really think that big seaports look amazing from the air, and so we at AirVuz put together this collection of great seaports and harbors from around the world.  Almost all of these were shot with DJI products, and about half with various versions of the Mavic.  We don't have all of them by any means and in particular we are missing many of the great Chinese ports but at least it's a start:

https://www.airvuz.com/collection/aerial-views-of-ports-and-harbors?id=ryz_GqTGQ

Hi there, thank you for sharing this with us. Have a safe flight always.

Thanks for sharing.