Is it normal to lose 7 pounds in 2 days after vacation water weight?

When I arrived in Toronto after getting off my cruise ship 2 days ago, the scale says I was 14 pounds heavier after my vacation then I was before my vacation,

Now the scale says... I am 7 pounds heavier after my vacation than I was before my vacation...

Meaning, I lost 7 pounds of water weight in 2 days..

And I might have even more water weight to lose now.

Updates
3 d
I lost another 5 pounds on the 3rd day, I am now down 12 pounds in water weight in 3 days.
Is it normal to lose 7 pounds in 2 days after vacation water weight?
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