pf2e.fyi
From Pathfinder Society Scenario #7-03: A Foot in the Door, which isn't enabled.

Dragged to the Briny Depths

COMPLEX HAZARD 5
Stealth +23 (trained)
Description A giant squid rams the ship from below, using its beak to puncture the hull. It then wraps its tentacles around the mast, rocking the ship violently.

Disable DC 23 Athletics to pull the tentacles from the mast, stopping the ship from rocking; two total successes are required to disable the hazard.

AC 22; Fort +15, Ref +9
HP 54 (BT 27); Immunities precision

Flip the Ship
Trigger The naiads board the ship

Effect Each creature standing on the deck must attempt a DC 22 Reflex save or fall Prone. The hazard then rolls initiative.
Melee Tentacle +15 (reach 10), Damage 2d8+7 bludgeoning
Routine (two actions) On its initiative, the squid uses its first action to pull on the mast Every creature must attempt a DC 22 Reflex save On a failure, it falls Prone If a creature is prone when attempting the save, it slides 10 feet in a direction determined by the GM on a failure If this movement would force a creature off the ship, it can attempt to Grab an Edge The squid uses its second action to make one tentacle attack
Reset The squid releases the ship for one round before regripping the mast and resetting the hazard The hazard no longer resets once the PCs defeat the naiads or they flee
Pathfinder Society Scenario #7-03: A Foot in the DoorORC