Phase 10 · Postgame east Unova

Undella Bay and Abyssal Ruins — Pokémon Black & White Walkthrough
Dive into all four ruin floors within the step limits.
Phase 10 · Postgame east Unova
Dive into all four ruin floors within the step limits.
Walkthrough
- Set the route. Read the item requirements below before entering; bring Surf, Strength, Waterfall, or the Dowsing Machine when a source direction names it.
- Clear in order. Battle the listed trainers from top to bottom, healing before any boss card or required story fight.
- Sweep the map. Collect visible items first, then make a second Dowsing Machine pass for every hidden tile.
- Finish the table. Apply the version and season filters before hunting; time of day never changes Black/White wild slots.
Pokémon locations
Each area below has its own table, split by encounter method. Rates merge every slot for a species and are shown per season; a single centered rate means all four seasons match. Time of day never changes Black/White wild slots. Identical Black and White slots share one row with both game markers.
| Pokémon | Games | Levels | Rate by season | Notes | |||
|---|---|---|---|---|---|---|---|
| Spring | Summer | Autumn | Winter | ||||
| Surf | |||||||
| Wingull | BW | 25-55 | 60% | Post-game. | |||
| Mantyke | BW | 25-55 | 30% | 30% | 30% | — | Post-game. |
| Spheal | BW | 25-55 | — | — | — | 30% | Post-game. |
| Pelipper | BW | 25-55 | 10% | Post-game. | |||
| Rippling water (Surf) | |||||||
| Wailmer | BW | 25-60 | 90% | 90% | 90% | 60% | Post-game. |
| Sealeo | BW | 25-60 | — | — | — | 30% | Post-game. |
| Mantine | BW | 35-70 | 5% | 5% | 5% | — | Post-game. |
| Wailord | BW | 35-70 | 5% | Post-game. | |||
| Walrein | BW | 35-70 | — | — | — | 5% | Post-game. |
| Fishing — Super Rod | |||||||
| Remoraid | BW | 35-55 | 55% | Post-game. | |||
| Shellder | BW | 35-55 | 40% | Post-game. | |||
| Luvdisc | BW | 35-55 | 5% | Post-game. | |||
| Rippling water (Super Rod) | |||||||
| Luvdisc | BW | 35-60 | 40% | Post-game. | |||
| Shellder | BW | 35-60 | 40% | Post-game. | |||
| Octillery | BW | 35-70 | 15% | Post-game. | |||
| Cloyster | BW | 45-70 | 5% | Post-game. | |||
Trainers
No ordinary placed Trainerentry is assigned to this page. Scripted boss variants appear in boss cards when applicable.
Items and gifts
North of the western entrance
Southeast quadrant
Southwest corner
West of the room's center
South of the room's center
Near the northeast corner
Northwest quadrant
Southwest quadrant
North of the room's center
North of the eastern entrance
Southeast quadrant
Near the northern entrance
Southeast corner
South of the western entrance
* Near the northwest corner * Southwest quadrant * East of the room's center
* Northwest quadrant * Northeast quadrant * Southeast quadrant
* Inside the northern entrance * Inside the eastern entrance * Inside the southern entrance * Southeast of the western entrance
Just north of the room's center
Southeast quadrant
* Northwest quadrant * Northeast quadrant * Along the east wall
* Northeast quadrant * Southwest quadrant
* Southwest quadrant * Near the entrance from 1F
Southwest corner
Northwest corner
* Southeast corner * Northeast quadrant
Southwest corner
South side
Northwest corner
* Northeast corner * Along the west wall
* Northeast quadrant * Southeast quadrant * In the room's center
In the center of the room
Hidden item checklist
No hidden item is listed for this page in the cached Black/White item table.
System reference
Abyssal Ruins
Unlock: Postgame Dive access in Undella Bay.
- Each dive begins a 500-step timer; the current floor ejects the player when the counter expires.
- Read the ciphers, route the central pillars, and collect every relic item before advancing to the next floor.