The main difference between a sea otter or a river otter is diet and “playground.”
Otter is about play. Otter makes everything a game, even when it is for survival. The game of finding food, the game of making relationships, the game of finding shelter, the game of defending family and territory, and the game of just playing for playing sake because it is goodness to play.
The otter also has power with the moon, is graceful in water (fluid in emotions!), intuitive, and quick acting.