Yes. I spent a pandemic summer sailing the north sea, denmark, sweden with a friend. We sailed much less in the baltic and I admittedly kind of mix the north & baltic in my memory but they are very similar regulatory environments re boats so it would surprise me if it was common in one but not the other.

> they are very similar regulatory environments re boats so it would surprise me if it was common in one but not the other.

One has Russia and their ports, while the other doesn't. So preparedness and military presence certainly is different between the two at least.