Sometimes you need a creature that can swim and survive in water.
- Add the aquatic trait (if the creature lives only in water) or amphibious trait (if the creature can live on both land and water).
- Add Athletics with a modifier equal to the creature's highest skill modifier.
- If the creature doesn't have a swim Speed, add a swim Speed equal to its highest Speed (if it's aquatic) or equal to half its
- land Speed (if it's amphibious; minimum 15 feet).
- If the creature doesn't have a land Speed, add a land Speed equal to half its swim Speed (minimum 15 feet) if it's amphibious.
- Add the following abilities:
Low-Light Vision
Scent (imprecise) 120 feet (optionally, if aquatic)