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 underneath 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

Item		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.

In the TCG

This listing is of cards mentioning or featuring the Marine Tube in the Pokémon Trading Card Game.

Related cards Cards listed with a blue background are only legal to use in the current Expanded format. Cards listed with a green background are legal to use in both the current Standard and Expanded formats.
Card	Type	English Expansion	Rarity	#	Japanese Expansion	Rarity	#
Jellicent		Boundaries Crossed		45/149	Freeze Bolt		022/059

In other languages

Language Title Chinese Cantonese 海洋隧道 Hóiyèuhng Seuihdouh Mandarin 海洋隧道 Hǎiyáng Suìdào European French Aquatube German Unterseetunnel Italian Tunnel Marino Korean 마린튜브 Marine Tube European Spanish Acuatúnel

Unova
Settlements Nuvema Town • Accumula Town • Striaton City • Nacrene City • Castelia City • Nimbasa City • Anville Town Driftveil City • Mistralton City • Icirrus City • Opelucid City • Pokémon League • Lacunosa Town • Undella Town Black City • White Forest • Aspertia City • Floccesy Town • Virbank City • Lentimas Town • Humilau City Routes 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 Bridges and tunnels Skyarrow Bridge • Driftveil Drawbridge • Tubeline Bridge • Village Bridge • Marvelous Bridge • Marine Tube Landmarks Dreamyard • Wellspring Cave • Pinwheel Forest • Liberty Garden • Desert Resort • Relic Castle • Battle Subway • Lostlorn Forest Cold Storage • Mistralton Cave • Chargestone Cave • Celestial Tower • Twist Mountain • Dragonspiral Tower • Moor of Icirrus Challenger's Cave • Victory Road (BW • B2W2) • N's Castle • Royal Unova • Giant Chasm • Undella Bay • Abyssal Ruins Abundant Shrine • Poké Transfer Lab • P2 Laboratory • Entralink • Unity Tower • Floccesy Ranch • Pledge Grove • Virbank Complex Pokéstar Studios • Castelia Sewers • Join Avenue • Cave of Being • Pokémon World Tournament • Reversal Mountain • Plasma Frigate Clay Tunnel • Underground Ruins • Strange House • Relic Passage • Seaside Cave • White Treehollow • Black Tower Access to Nature Preserve Other Blueberry Academy • Terarium

This article is part of Project Locations, a Bulbapedia project that aims to write comprehensive articles on every location in the Pokémon world.