Seas of war (Arcane April 2021, day 4)

These seas be dangerous, sap
And that aint no lie,
But stick with me and
You’ll see how to survive!

Aye, I be a pirate
But I ain’t one of the bad ones,
The Grand Navy just be,
A bunch of traitorous, bumbling morons!

Watch the sea for monsters,
They like to hide in the depths,
And watch the skies for gulls,
For they often fly over shipwrecks!

Scan the horizon for signs
Of the Grand Navy or pirates,
For they be after me,
And now, you as well!