| Marine Tube マリンチューブ Marinchūbu | |
 | |
| Information about Marine Tube | |
| Region: | Unova |
| Connecting locations: | ↑North Humilau City ↓South Undella Town |
| Weather: | Normal |
| Kind: | Tunnel |
| Needed HM: | None |
The Marine Tube is an underwater tunnel connecting Undella Town and Humilau City that has various Water-type Pokémon swimming around it.
