The 6 navy ships.. pirate papers

[Evil123456789]

hey i was wondering where these ships might be??

can u guys tell me like like where will i find them? cause i looked like at a lot of places. and i got to the place after the thieving den, the fort after there were there are high levels navy guards with some thougs or bandits..

i srsly cant find those 6 navy ships. r they like on the island ?? or like do i have to sink them on the high seas

thx in advanced