Marine Tube

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Marine Tube		マリンチューブ Marine Tube
"Wild Missingno. appeared!"

Map description:

An undersea tunnel built using cutting-edge technology.

Location:

Between Undella Town and Humilau City

Region:

Unova

Generations:

V

Location of Marine Tube in Unova.

Pokémon world locations

The Marine Tube (Japanese: マリンチューブ Marine Tube) is an underwater location in Unova introduced in Pokémon Black and White 2. It is a tube that connects Undella Town with Humilau City under Undella Bay.

Marine Tube Ahead
The Walk-Through Aquarium

Description

Known as "the walk-through aquarium", the Marine Tube was built during the two years between Pokémon Black and White and their sequels. It was constructed to commemorate the friendship between Undella Town and Humilau City and was designed, as stated by an NPC, "to see, not to move." When the player first arrives in Undella Town, the Marine Tube is closed for cleaning and yet to open. The cleaning is completed at the same time the player earns the Legend Badge and defeats Team Plasma in Opelucid City.

The Marine Tube is a transparent tube made of 9.8 inch glass built to withstand high water pressures and contact with huge Pokémon. The tunnel was made above ground and lowered into the water. Crossing a six-mile-deep ocean trench, the Marine Tube is one of the many pinnacles of technology in the Unova region.

Plating corals and pyramid-like rocks can be seen in the water surrounding the tube. Lights have been placed outside the tube to provide visibility. There is a canyon halfway along the tube's route, the bottom of which cannot be seen. The Water-type Pokémon Alomomola, Basculin, Frillish, Mantine, and Wailord can be observed outside, represented with animations exclusive to this purpose. Each of these Pokémon will only appear at certain times of the day; the player can get the Wailord Watcher Medal by spotting an elusive Wailord, which are common between 3:00 PM and 5:00 PM (going by the time the player entered the Marine Tube).

There are no wild Pokémon or Trainers to battle in the Marine Tube. There are no items lying around, although the self-proclaimed first fan of Roxie will give the player a Black Sludge if they show her a Pokémon holding a Poison Barb.

If the player has given a man in an orange shirt a Fresh Water at Skyarrow Bridge, Driftveil Drawbridge, Tubeline Bridge, Village Bridge, and Marvelous Bridge, then they will meet up with the same man here. Should the player give him another Fresh Water, then he will become rehydrated and dash back to the Skyarrow Bridge with some gifts for the player.

Items

	Location	Games
Black Sludge	From a female Ace Trainer after showing her a Pokémon holding a Poison Barb	B2 W2
TM42 (Facade)	From a Parasol Lady at the Humilau City entrance	B2 W2

Observable Pokémon

Pokémon		Hours
	Mantine	9:00 AM - 2:59 PM
	Wailord	3:00 PM - 4:59 PM
	Basculin	12:00 AM - 2:59 PM and 5:00 PM - 11:59 PM
	Frillish	12:00 AM - 5:59 AM and 5:00 PM - 11:59 PM
	Alomomola	6:00 AM - 8:59 AM

In the manga

Marine Tube in Pokémon Adventures

In the Pokémon Adventures manga

The Marine Tube first appeared in PS541. Cheren and his students were taken there by Marlon and Benga after being rescued from Castelia City, which had been frozen by the Plasma Frigate.