Very good point about the boats in the marinas. This needs to be expanded to ALL boats, docks and shorelines worldwide.
There are a number of topics on the above subjects (water coming up the shoreline, sunken boats and docks on rivers) for cities like London and on and on. Third party developers have fixed some of these but millions (maybe billions) of miles of less traveled shoreline areas will never get third party attention. I know because I fly in the Pacific Northwest and visit favorite fishing lakes using the amphibian or float planes in the simulator. The docks, marinas and boats are there and visible from 500 ft. But, land and try to pull up to them, you find they are underwater. You can touch them but they are underwater because the water near shore rides up the shore.
Glad you brought this up. Hope it gets some attention soon. A ticket has been submitted to Zendesk.