Windows 10 64 bit, 8 Gm RAM, Intel(R) Core(TM) I7-4500 CPU1.80 GHz 2.40GHz GPU: AMD Radeon R7 M265, Intel(R) HD Graphics Family.

AI builds ships in the lake.
Look at the screenshot. 4 armies from combat (not cargo, but combat) ships in the lake. AI built them there. What for? Useless waste of resources, because the lake has no outlet to the ocean. The difficulty level of the game is "insane."

Game version V1.5.14 S3 (64BIT)
Save: Ультра Маги - Ход 104.zip

output_log.txt

Diagnostics (2017'09'11 @1917'18'').rar

Registry.xml

The problem has not disappeared.
The developer having a beautiful blogs and doing PR, but not eliminate the shortcomings of the (beautiful, but has flaws) of the game!

Given Cargo Docks cannot be built on lakes, I'd really like it if the ship building location could also be forbidden from lakes.

I would love a fix for this too.  Registered simply to post this.  There is a thread in the Steam support forums back in 2014:

 
 Dec 12, 2014 @ 1:07am 

Answered here: http://forums.amplitude-studios.com/showthread.php?46779-Issue-Quest-spawned-enemies&p=224656&viewfull=1#post224656

We're working on a fix but I can't really tell when the next update will be available (surely not this year).

That link is dead and I see nothing over 3 years later.  Currently stuck on a quest to ensure no enemies remain in my region but that pesky little neutral boat has been sitting in the single hex lake for about 100 turns.  Frustrating.