I guess the thread is too long to read
This embarked builder can clearly traverse the polder, see the white lines. The polder also has a small water channel. I doubt you will be able to make a land bridge with them.
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No, I had read your post. I just don't buy it at this time.
1) No, I don't see any white lines. I really don't. Hmmmm.
2) Even if I saw them, I don't regard that as definitive. I need video of a ship moving through one. Sorry Vic.