We All Live In One

Tubote, the Shipping Pokémon
Water-Type
A helpful Pokemon that will carry others across large spaces of water.

Rusmarine, the Subsurface Pokémon
Water/Steel-Type
RUSMARINE is rarely seen by humans as it spends most of its time at the bottom of the sea.

Viquen, the Pirate Pokémon
Water-Type
It swims alongside large ships, attempting to steal any goods that may on board.