From Pathfinder Lost Omens High Seas, which isn't enabled.

Waterweave Tripkee

FEAT 1

Your body has adapted to remain underwater indefinitely. You can breathe in water just as easily as you can breathe air. You gain the amphibious trait.

Special If you have the Riverside Tripkee heritage, your swim Speed increases to 20 feet.

Pathfinder Lost Omens High SeasORC