Specifically the Charybdis
A giant sea creature that will lurk below ships, when it’s mouth opens it will temporarily trap ships in a whirlpool dealing damage to the ships while spinning them out of control, it can be lured in by the sound of cannon fire but only rarely attacks, one per server just like the Kraken.
Once the whirlpool ends the monster will rise to the surface and spew water onto your ship flooding it, you will have to act fast and bilge and return cannon fire on the beast.
