From Pathfinder #217: Death Sails a Wine-Dark Sea, which isn't enabled.

Precarious Footing

HAZARD 5

Stealth +14 (trained)

Description The ground around the lava pit is crumbling and unstable.

Disable DC 18 Survival (trained) to weather the collapse safely; DC 20 Crafting (trained) to stabilize the ground

Lava Bath

Trigger A creature steps into the pit or within 5 feet of its edge

Effect The ground crumbles apart and the creature slides into the lava. That creature can use the Grab an Edge reaction to avoid falling. Otherwise it falls 20 feet (taking 10 fall damage) and is exposed to lava, taking 6d6 fire damage per round of contact. Climbing the crumbling rock face requires a successful DC 20 Athletics check.

Pathfinder #217: Death Sails a Wine-Dark SeaORC