Use the move Dive—an underwater exploration ability added in a free software update to the Pokémon Pokopia game—to visit the aquatic area of Bubbly Basin in Part 1 of the three-part Pokémon™ Pokopia Expansion Pass DLC*! You’ll find additional furniture items, new outfits for Ditto, and—of course—more Pokémon to meet!

To access Bubbly Basin’s underwater gate, you must first learn Dive and complete the important request “Raise the environment level!” in Bleak Beach.