The first part of the Expansion Pass for Pokémon Pokopia, Bubbly Basin takes 
Ditto beneath the surface to a sunken town waiting to be brought back to life. This guide covers everything you need to know: access requirements and learning Dive, how the town works, its 50-Pokémon Pokédex and the full list of the 36 habitats exclusive to the add-on content.
Contents
- The Expansion Pass at a glance
- Getting to Bubbly Basin: the requirements
- Developing the underwater town
- The Bubbly Basin Pokédex
- The 36 exclusive Bubbly Basin habitats
- What comes next? Parts 2 and 3
- Tips
The Expansion Pass at a glance
The paid Expansion Pass for Pokémon Pokopia costs €34.99 on the Nintendo eShop (France). A single purchase unlocks all three parts as they are released. The base game is of course still required.
| Part | Release | Announced content |
|---|---|---|
| Part 1: Bubbly Basin | August 5, 2026 | An underwater town to develop, new Pokémon, furniture, outfits and smoothies |
| Part 2 | Late 2026 | Accessories for Ditto and the Pokémon, new Pokémon and brand-new furniture, with no new town |
| Part 3 | 2027 | A new area to explore and renovate |
Two bonuses come with the purchase of the pass:
- “Ditto Galore” pattern: a recipe for crafting blocks and wallpaper, to be collected from the main menu (+ button), under “Downloadable Content”, then “View Item List” and “Claim”.
- 30 rare Pokémetal ingots: for any purchase of the pass before August 31, 2027, a code is sent to the email address of the Nintendo account. It can be redeemed through Mystery Gift until Thursday, September 30, 2027, with the console connected to the internet.
Getting to Bubbly Basin: the requirements
Buying the pass is not enough: Bubbly Basin stays out of reach until you have progressed far enough in the base game. Here are the steps, in order:
- Install free update 2.0.0, released on the same day as the add-on content.
- Complete the Important Request “A Nicer Environment” in Bleak Beach.
- Know how to jump, a move taught by
Magikarp, and know Surf, learned from 
Lapras. - Meet
Manaphy: after talking to 
Professor Tangrowth in Bleak Beach, surf to the small island that has appeared offshore. The Mythical Pokémon is starving: it asks for 5 pieces of seaweed, which you can find in the island’s cave, among other places. In return, it teaches Ditto Dive. - Reach Bubbly Basin:
Popplio then takes over and guides you to the sunken town, located north of Bleak Beach.
Dive is part of the free update, so it is available to all players, even without the pass, to explore and build underwater in the base game’s areas. Only the town of Bubbly Basin and its content are reserved for pass owners.
Developing the underwater town
Bubbly Basin follows the same principle as the other areas: an abandoned town, a level gauge to fill by creating habitats and completing Requests, and Pokémon gradually returning to settle in. The town is inspired by Cerulean City, Misty’s Gym and its surroundings, now submerged.
The town’s level goes up to 10, and the Pokémon Center can be rebuilt from level 3. The area is split into three tiers: the surface, with a few buildings poking out of the water, the seabed, which forms the main area, and the abyss. You reach the abyss through a black hole on the sea floor, and you have to follow the glowing corals and keep a light source close to you to make progress there.
The add-on content also introduces several mechanics specific to the depths:
- Watermelons, grown underwater with the help of Pokémon that specialize in watering.
- Bubble machines and lighting, which must be powered with electricity by Pokémon able to generate it.
- Smoothies, a new drink made in the blender from Berries. A smoothie boosts Surf: Ditto then swims faster underwater.
- Underwater construction: floating blocks let you build at different heights beneath the surface, all the way to submarine-shaped homes.
- New furniture and outfits with a marine theme (ocean furniture, seashells, decorative Poké Balls…).
The Bubbly Basin Pokédex
Bubbly Basin has its own Pokédex of 50 Pokémon, from 
Shellder to Manaphy. The table shows in which add-on habitats each one can appear (numbers from the list below).
| No. | Pokémon | Bubbly Basin habitats |
|---|---|---|
| 001 | Shellder | No. 002, No. 009 |
| 002 | Cloyster | No. 005 |
| 003 | Horsea | No. 007 |
| 004 | Seadra | No. 007 |
| 005 | Kingdra | No. 007, No. 034 |
| 006 | Staryu | No. 003 |
| 007 | Starmie | No. 036 |
| 008 | Totodile | No. 001, No. 024, No. 028 |
| 009 | Croconaw | No. 015, No. 024 |
| 010 | Feraligatr | No. 001, No. 011 |
| 011 | Chinchou | No. 023 |
| 012 | Lanturn | No. 033 |
| 013 | Corsola | No. 002, No. 007 |
| 014 | Mudkip | No. 001, No. 023 |
| 015 | Marshtomp | No. 014, No. 025 |
| 016 | Swampert | No. 002, No. 026 |
| 017 | Carvanha | No. 006 |
| 018 | Sharpedo | No. 015 |
| 019 | Barboach | No. 010, No. 019, No. 025 |
| 020 | Whiscash | No. 035 |
| 021 | Corphish | No. 008, No. 009 |
| 022 | Crawdaunt | No. 009 |
| 023 | Luvdisc | No. 004, No. 018, No. 023 |
| 024 | Buizel | No. 001, No. 022 |
| 025 | Floatzel | No. 020 |
| 026 | Finneon | No. 003, No. 012 |
| 027 | Lumineon | No. 005, No. 012 |
| 028 | Frillish | No. 017, No. 021 |
| 029 | Jellicent | No. 032 |
| 030 | Alomomola | No. 021 |
| 031 | Stunfisk | No. 003, No. 006 |
| 032 | Inkay | No. 025 |
| 033 | Malamar | No. 027 |
| 034 | Popplio | No. 003, No. 029 |
| 035 | Brionne | No. 029 |
| 036 | Primarina | No. 031 |
| 037 | Mareanie | No. 004 |
| 038 | Toxapex | No. 018 |
| 039 | Wimpod | No. 016 |
| 040 | Golisopod | No. 004, No. 016 |
| 041 | Bruxish | No. 013 |
| 042 | Dhelmise | No. 017 |
| 043 | Chewtle | No. 022 |
| 044 | Drednaw | No. 024 |
| 045 | Pincurchin | No. 014 |
| 046 | Wiglett | No. 010 |
| 047 | Wugtrio | No. 030 |
| 048 | Veluza | No. 012 |
| 049 | Phione | Not in a habitat (special encounter) |
| 050 | Manaphy | Not in a habitat (special encounter) |
Manaphy and Phione do not appear in any habitat: Manaphy is met while learning Dive, and Phione requires special conditions.
The 36 exclusive Bubbly Basin habitats
These habitats are built in the underwater town and use many elements specific to the add-on content: seabed grass and flowers, corals, sea moss, rock chimneys, muddy water, powered objects… As in the base game, all elements must be placed side by side, and each habitat only welcomes one Pokémon at a time.
| No. | Habitat | Required items | Pokémon attracted |
|---|---|---|---|
| 001 | Underwater Tall Grass | Seabed Grass ×4 | Totodile, Feraligatr, Mudkip, Buizel |
| 002 | Underwater Tall Grass and Corals | Seabed Grass ×4, Small Coral ×1, Oblong Coral ×1 | Shellder, Corsola, Swampert |
| 003 | Swaying Flower Bed | Seabed Flowers ×4 | Staryu, Finneon, Stunfisk, Popplio |
| 004 | Swaying Flower Bed and Corals | Colorful Coral ×1, Seabed Flowers ×4 | Luvdisc, Mareanie, Golisopod |
| 005 | Swaying Flower and Seaweed Bed | Rock Chimneys ×1, Seabed Flowers ×4, Tall Seaweed ×2 | Cloyster, Lumineon |
| 006 | Seaweed and Nets | Net ×4, Tall Seaweed ×2 | Carvanha, Stunfisk |
| 007 | Coral Assortment | Colorful Coral ×1, Small Coral ×1, Oblong Coral ×1 | Horsea, Seadra, Kingdra, Corsola |
| 008 | Underwater Tall Grass and Sand Pile | Sand Pile ×1, Seabed Grass ×4 | Corphish |
| 009 | Sand Digging Spot | Sand Pile ×1, Beach Toys ×1 | Shellder, Corphish, Crawdaunt |
| 010 | Sandy Conference Area | Sand Pile ×1, Any Table ×1, Tabletop Mic ×1 | Barboach, Wiglett |
| 011 | Punching Bag with Bite | Sand Pile ×1, Punching Bag ×1, Any Table ×1, Gold Teeth ×1 | Feraligatr |
| 012 | Mossy Sea Corner | Sea Moss ×4 | Finneon, Lumineon, Veluza |
| 013 | Fiery Mossy Corner | Fiery Rock ×1, Sea Moss ×4 | Bruxish |
| 014 | Eerie Rock Chimneys | Rock Chimneys ×1, Sea Moss ×4, Barrel ×1, Lantern (Powered) ×1 | Marshtomp, Pincurchin |
| 015 | Rock Chimney Drilling | Rock Chimneys ×1, Wheelbarrow ×1, Digging Tools ×1, Traffic Cone ×1 | Croconaw, Sharpedo |
| 016 | Abandoned Treasure Chest | Grand Treasure Chest ×1, Any Trash Can ×1, Trash Bags ×1 | Wimpod, Golisopod |
| 017 | Maritime Play Area | Grand Treasure Chest ×1, Ship’s Wheel ×1, Wooden Crate ×1, Ship in a Bottle ×1 | Frillish (male and female), Dhelmise |
| 018 | Sparkling Treasure | Grand Treasure Chest ×1, Sparkling Jewels ×1, Lantern (Powered) ×1 | Luvdisc, Toxapex |
| No. | Habitat | Required items | Pokémon attracted |
|---|---|---|---|
| 019 | Traditional Sea Lounge | Small Coral ×1, Shell Cushion ×1, Paper Lantern ×1 | Barboach |
| 020 | Sea Shop | Crate (Powered) ×1, Any Table ×2, Body of Water ×1 | Floatzel |
| 021 | Treasures of the Sea | Ocean Dresser ×1, Ship in a Bottle ×1, Sparkling Jewels ×1 | Frillish (male and female), Alomomola |
| 022 | Smoothie Workshop | Blender ×1, Dish ×1, Any Table ×1 | Buizel, Chewtle |
| 023 | Cozy Relaxation Space | Giant Cushion ×1, Any Lighting ×1, Any Plushie ×1 | Chinchou, Mudkip, Luvdisc |
| 024 | Pier | Rowboat ×1, Floating Logs ×2, Body of Water ×2 | Totodile, Croconaw, Drednaw |
| 025 | Mud Splashing Corner | Inkay Toy ×1, Towel Rack ×1, Floating Logs ×1, Muddy Water ×2 | Marshtomp, Barboach, Inkay |
| 026 | Mud Spa | Any Bench or Sofa ×1, Gyarados Fountain ×1, Bath Products ×1, Muddy Water ×2 | Swampert |
| 027 | Upside-Down Lighting | Paper Lantern ×3 | Malamar |
| 028 | Bubble Bath | Bathtub ×1, Bubble Machine (Powered) ×1 | Totodile |
| 029 | Bubbly Stage | Portable Stage (Powered) ×1, Bubble Machine (Powered) ×2 | Popplio, Brionne |
| 030 | Sparkling Stage for a Trio | Standing Mic ×3, Wireless Transmitter Post (Powered) ×3 | Wugtrio |
| 031 | Fancy Concert Stage | Harp ×1, Ocean Seat ×1, Shell Lamp (Powered) ×2 | Primarina |
| 032 | Naval-Themed Tea Room | Fancy Table ×1, Fancy Armchair ×2, Cart ×1, Any Tea Essential ×1, Ship in a Bottle ×1 | Jellicent (male and female) |
| 033 | Nostalgic Spot | Antique Dresser ×1, Music Box ×1, Photo Frame ×1, Sea Moss ×2, Wooden Crate ×1, Lantern (Powered) ×1 | Lanturn |
| 034 | Ocean Beauty Space | Ocean Wardrobe ×1, Ocean Vanity ×1, Ocean Seat ×1 | Kingdra |
| 035 | Sumptuous Bedroom | Interlaced Screen ×1, Interlaced Bed ×1, Interlaced Dresser ×1 | Whiscash |
| 036 | Mermaid-in-Shorts Arena | Ocean Sofa ×1, Pedestal or Display Stand ×6, Decorative Great Ball ×1, Decorative Heal Ball ×1, Decorative Dive Ball ×1, Decorative Net Ball ×1, Decorative Lure Ball ×1, Decorative Quick Ball ×1 | Starmie |
What comes next? Parts 2 and 3
The second part of the pass is expected in late 2026. It does not add a town, but accessories for Ditto and the Pokémon to wear, new Pokémon and brand-new furniture. The third part, planned for 2027, will open a new area to explore and renovate.
Tips
- Finish “A Nicer Environment” in Bleak Beach before anything else: without this Request, neither Dive nor Bubbly Basin is accessible.
- Keep some seaweed on you before going to meet Manaphy: it is what it asks for in exchange for teaching you Dive.
- Several habitats require “powered” objects (bubble machine, lantern, crate, portable stage): make sure you have Pokémon able to generate electricity.
- The “Any Table”, “Any Lighting” and “Any Plushie” elements accept any model in the category: there is no need to look for a specific item.
- In the abyss, always move forward with a light source and follow the glowing corals so you don’t get lost.
Related guides
Find all our guides in the complete Pokémon Pokopia walkthrough:
- Getting started: the basics and 10 tips
- Story walkthrough, area by area
- All of Ditto’s moves
- Habitat Dex: the 209 habitats and their recipes
- All Pokémon specialties
- Legendary and Mythical Pokémon: how to meet them
- Environment Level, Comfy Level and Mosslax
- Friendship, mini-games and best moments
- Crafting, materials and building kits
- Cooking and gardening: all the recipes
- Lost items, Human Records and treasure maps
- Dream Islands and Cloud Islands
- Pumpkaboo’s Halloween event
- Mystery Gift codes and distributions
Sources: official Pokémon Pokopia website (Expansion Pass), official website (free update), Serebii (Bubbly Basin), Serebii (Bubbly Basin Pokédex), Pokébip (habitats), Poképédia (habitats), Gameblog, P-Nintendo, Dexerto. Artwork credits: © The Pokémon Company / Nintendo / GAME FREAK / KOEI TECMO (official website).
