Bubbly Basin was the first area released in Pokémon Pokopia’s three-part expansion pass.
Pokopia received a paid three-part expansion pass, and its first installment, Bubbly Basin, was released in August 2026. The expansion adds an aquatic-themed area to the game’s world and expands the kinds of exploration and decoration available to players.
A related free update introduced diving, allowing Ditto to enter water and reach regions of the map that were previously unexplorable. The water-focused content also includes aquatic Pokémon and new furniture.
Bubbly Basin is not the name of the whole expansion pass; it is the first part of that pass. The remaining two parts were scheduled for late 2026 and 2027. This makes the name a useful distinction when discussing Pokopia’s post-launch content rather than its base-game regions.