GLURRRGH!
— Gurgler
Coast Raid is an Event that can trigger if the Player has a base within 5,000 meters of a Fishmen owned location. It has a 15% chance to trigger each day if within 3,500 meters, this chance scales down with distance until it reaches 0% at 5,000 meters. The event cannot trigger if the King Gurgler is killed or captured.
Once the conditions are fulfilled, the Fishmen will send an assault to the player's base. This assault will consist of 2-4 squads, each consisting of 20-40 Gurglers and 0-3 Alpha Gurglers.
Once it arrives, the War Leader will shout a few times before the assault begins, breaking down gates and attacking characters.
Note: As of 1.0.64, this event is currently broken and cannot trigger without a mod fixing it, due to the faction having a "not real" faction flag.