[mongol]

It is not the salinity as such that protected Vasa, but the absence of the ship worm, which does not like the Baltic brack water.

[AlbertCory]

TIL. I did go to that museum and I thought that was what they said.

What do you mean by "brack water"?

[chucksmash]

> Brackish water, sometimes termed brack water, is water occurring in a natural environment that has more salinity than freshwater, but not as much as seawater.

> Some seas and lakes are brackish. The Baltic Sea is a brackish sea adjoining the North Sea.

https://en.wikipedia.org/wiki/Brackish_water

[mongol]

Brack water have a salinity between sea water and fresh water.