Marine Tube

Marine Tube is an underwater tunnel connecting Undella Town and Humilau City and has various Water-type Pokémon swimming around it.

Items

Items
Item		Games	Location/Method
	Black Sludge	B2/W2	A female Ace Trainer gives it for showing a Pokémon with a Poison Barb

v · d · e List of Unova locations

Characters · Pokédex

Settlements	Accumula Town Anville Town Aspertia City^B2W2 Player's house Black City^B^B2/White Forest^W2 Black Tower^B2W2 White Treehollow^B2W2 Castelia City Battle Company Game Freak Tower Liberty Garden Royal Unova Unity Tower Castelia Park^B2W2 Castelia Sewers^B2W2 Driftveil City Cold Storage^BW Clay Tunnel^B2W2 Mistralton Cave Guidance Chamber Underground Ruins Pokémon World Tournament^B2W2 Relic Passage^B2W2 Floccesy Town^B2W2 Floccesy Ranch Humilau City^B2W2 Icirrus City Dragonspiral Tower Lacunosa Town Lentimas Town^B2W2 Reversal Mountain^B2W2 Strange House^B2W2 Mistralton City Nature Preserve^B2W2 Nacrene City Pinwheel Forest Rumination Field Nimbasa City Battle Subway Pokémon Musical Sport Domes Nuvema Town Player's house^BW Opelucid City Striaton City Dreamyard Undella Town Undella Bay^B2W2 Seaside Cave Abyssal Ruins Marine Tube^B2W2 Virbank City^B2W2 Pokéstar Studios Virbank Complex

Pokémon League	Pokémon League N's Castle Victory Road^BW Trial Chamber^BW Victory Road^B2W2

Routes	1 2 3 Wellspring Cave 4 Desert Resort Relic Castle Join Avenue^B2W2 5 6 Chargestone Cave Mistralton Cave Guidance Chamber 7 Celestial Tower Twist Mountain 8 Moor of Icirrus 9 Challenger's Cave^BW Shopping Mall Nine 10^BW 11 12 13 Giant Chasm 14 Abundant Shrine 15 Poké Transfer Lab 16 Lostlorn Forest 17 P2 Laboratory Plasma Frigate^B2W2 18 19^B2W2 20^B2W2 Cave of Being^B2W2 21^B2W2 22^B2W2 Giant Chasm 23^B2W2

Bridges	Driftveil Drawbridge Marvelous Bridge Skyarrow Bridge Tubeline Bridge Village Bridge

Buildings	Blueberry Academy^SV^TID

Places of Interest	Entralink Entree Forest Hidden Grotto^B2W2 Terarium^SV^TID Savannah Biome Coastal Biome Canyon Biome Polar Biome Chargestone Cavern

See also	Kanto Sevii Islands Johto Hoenn Sinnoh Battle Zone Hisui Kalos Alola Galar Isle of Armor Crown Tundra Paldea Kitakami Terarium

Regions