Weather Institute
Entered from Weather Institute.
- COST
- 26,000 Cave Tokens
- LEVEL
- Lv 112
- ENEMY HP
- 470,000
- TIME
- 60 s
- FLOOR
- 5×5, 5 chests
- TOKENS / CATCH
- 485
HP shown with no chests opened. Each chest you open adds 20% HP to the enemies and the boss for the rest of the run.
How to open it
- Defeat 10 Pokémon on Route 119
Boss
One of these waits at the end of each run:
| Boss | Pokémon | Level | HP | Chance | Note |
|---|---|---|---|---|---|
| Aqua Admin Shelly |  Carvanha | 28 | 910,000 | 50% | |
 Mightyena | 28 | 910,000 | |||
| Wild boss (can be caught) |  Castform | 20 | 1,820,000 | 50% | after 1 clears |
Trainers
Trainers fight with their whole team; their Pokémon can't be caught, except the Shadow Pokémon marked here (see Shadow Pokémon).
| Trainer | Team | Chance | Note |
|---|---|---|---|
| Team Aqua Grunt | | 20% | |
| Team Aqua Grunt |   | 20% | |
| Team Aqua Grunt | | 20% | |
| Team Aqua Grunt | | 20% | |
| Team Aqua Grunt | | 20% |
Chest loot
A chest first rolls a rarity, then an item of that rarity. The more times you have cleared the dungeon, the more often the rarer rarities come up (up to 500 clears). A chest sometimes holds more than one of the item.
COMMON · 75% → 61%
X Attack 50% of common chests 
Lucky Egg 50% of common chests RARE · 20% → 25%
Red Shard 33% of rare chests 
Blue Shard 33% of rare chests 
Yellow Shard 33% of rare chests EPIC · 4.01% → 10%
Damp Rock 25% of epic chests 
Smooth Rock 25% of epic chests 
Heat Rock 25% of epic chests 
Icy Rock 25% of epic chests LEGENDARY · 1.00% → 4.03%
Splash Plate 50% of legendary chests 
Mystic Water 50% of legendary chests Achievements
Clearing it 10, 100, 250 and 500 times gives the Delver, Spelunker, Old Hand and Resident achievements (see Achievements).