Castelia Sewers

This article is incomplete. Please feel free to edit this article to add missing information and complete it. Reason: Full list of what items are available only if sewers are flooded, and layout

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colspan="2" style="text-align:center; background: #Template:City color light; border-top-left-radius: 10px; -moz-border-radius-topleft: 10px; -webkit-border-top-left-radius: 10px; -khtml-border-top-left-radius: 10px; -icab-border-top-left-radius: 10px; -o-border-top-left-radius: 10px; border-top-right-radius: 10px; -moz-border-radius-topright: 10px; -webkit-border-top-right-radius: 10px; -khtml-border-top-right-radius: 10px; -icab-border-top-right-radius: 10px; -o-border-top-right-radius: 10px;" | Castelia Sewers ヒウン下水道 Hiun Sewers "Wild Missingno. appeared!"
style="text-align:right; background: #Template:City color light; " | Map description:	Iron bars around the exits were dismantled, drawing curious Trainers.
style="text-align:right; background: #Template:City color light; " | Location:	Under Castelia City
style="text-align:right; background: #Template:City color light; " | Region:	Unova
style="text-align:right; background: #Template:City color light; " | Generations:	V
Location of Castelia Sewers in Unova.
colspan="2" style="text-align:center; background: #Template:City color light; border-bottom-left-radius: 10px; -moz-border-radius-bottomleft: 10px; -webkit-border-bottom-left-radius: 10px; -khtml-border-bottom-left-radius: 10px; -icab-border-bottom-left-radius: 10px; -o-border-bottom-left-radius: 10px; border-bottom-right-radius: 10px; -moz-border-radius-bottomright: 10px; -webkit-border-bottom-right-radius: 10px; -khtml-border-bottom-right-radius: 10px; -icab-border-bottom-right-radius: 10px; -o-border-bottom-right-radius: 10px;;" |Pokémon world locations

The Castelia Sewers (Japanese: ヒウン下水道 Hiun Sewers) is a location in south Unova. It is accessible via an entrance in Castelia City on Thumb Pier. They cannot be accessed until the player talks to Clyde in front the Castelia Gym. When exploring for the first time, Hugh will join the player as a tag partner. Here the player meets Colress for the first time. Relic Passage is accessible from here. There is also an exit to Castelia City's park with wild Pokémon, and when the sewers are flooded, to Castelia City's back alley. During autumn and winter, the sewers are dry, blocking some areas and removing the requirement of Surf to access others.

Items

colspan="2" style="background: #Template:City color light; color:#000000; border-top-left-radius: 5px; -moz-border-radius-topleft: 5px; -webkit-border-top-left-radius: 5px; -khtml-border-top-left-radius: 5px; -icab-border-top-left-radius: 5px; -o-border-top-left-radius: 5px;" | Item	style="background: #Template:City color light; color:#000000;" | Location	style="background: #Template:City color light; color:#000000; border-top-right-radius: 5px; -moz-border-radius-topright: 5px; -webkit-border-top-right-radius: 5px; -khtml-border-top-right-radius: 5px; -icab-border-top-right-radius: 5px; -o-border-top-right-radius: 5px;" | Games
	TwistedSpoon	Near Team Plasma Grunts	B2  W2
X Special	X Special	Near the Janitor	B2  W2
	Rare Bone	In western part	B2  W2
	Leftovers	Near the Doctor	B2  W2
	HM04 (Strength)	From Hugh after defeating Team Plasma Grunts	B2  W2
	Heart Scale	West of the Relic Passage entrance	B2  W2
	X Sp. Def	West of Janitor Felix (requires Surf)SpringSummer	B2  W2
	Pearl	Near Worker Scott (requires Surf)SpringSummer	B2  W2
	HP Up	Southernmost part (requires Surf) (hidden)SpringSummer	B2  W2
	Poison Gem	Northeast of HP Up (requires Surf) (hidden)SpringSummer	B2  W2
	TM41 (Torment)	West of Scientist Clarke (requires Surf)SpringSummer	B2  W2
	Max Repel	Southwest of Janitor Felix (requires Surf) (hidden)SpringSummer	B2  W2
	Nugget	East of Worker Zack (requires Surf) (hidden)SpringSummer	B2  W2
	Ultra Ball	West of Worker Scott (requires Surf)SpringSummer	B2  W2
	Black Sludge	West of Max Repel (requires Surf)SpringSummer	B2  W2
colspan="4" style="background: #Template:City color light; border-bottom-left-radius: 5px; -moz-border-radius-bottomleft: 5px; -webkit-border-bottom-left-radius: 5px; -khtml-border-bottom-left-radius: 5px; -icab-border-bottom-left-radius: 5px; -o-border-bottom-left-radius: 5px; border-bottom-right-radius: 5px; -moz-border-radius-bottomright: 5px; -webkit-border-bottom-right-radius: 5px; -khtml-border-bottom-right-radius: 5px; -icab-border-bottom-right-radius: 5px; -o-border-bottom-right-radius: 5px;" |

Scientists

A female Scientist in a room near Doctor Heath and a male Scientist in a room near Janitor Brady are attempting to turn poison into medicine, and will give the player items created in their experiments. They can give out any one of these items on a daily basis.

colspan="2" style="background: #Template:City color light; color:#000000; border-top-left-radius: 5px; -moz-border-radius-topleft: 5px; -webkit-border-top-left-radius: 5px; -khtml-border-top-left-radius: 5px; -icab-border-top-left-radius: 5px; -o-border-top-left-radius: 5px;" | Item	style="background: #Template:City color light; color:#000000;" | Location	style="background: #Template:City color light; color:#000000; border-top-right-radius: 5px; -moz-border-radius-topright: 5px; -webkit-border-top-right-radius: 5px; -khtml-border-top-right-radius: 5px; -icab-border-top-right-radius: 5px; -o-border-top-right-radius: 5px;" | Games
	Potion	Received from female Scientist	B2  W2
	Super Potion	Received from female Scientist	B2  W2
	Revive	Received from female Scientist	B2  W2
	Antidote	Received from male Scientist (requires Surf)SpringSummer	B2  W2
	Full Heal	Received from male Scientist (requires Surf)SpringSummer	B2  W2
	Full Restore	Received from male Scientist (requires Surf)SpringSummer	B2  W2
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Pokémon

class="roundytl" style="padding-left: 1em; padding-right: 1em; background: #Template:City color light; color: #000000" rowspan="2" | Pokémon	style="padding-left: 1em; padding-right: 1em; background-color: #Template:City color light; color: #000000" rowspan="2" colspan="6" | Games	style="padding-left: 1em; padding-right: 1em; background-color: #Template:City color light; color: #000000" rowspan="2" | Location	style="padding-left: 1em; padding-right: 1em; background-color: #Template:City color light; color: #000000" rowspan="2" | Levels	class="roundytr" style="padding-left: 1em; padding-right: 1em; background-color: #Template:City color light; color: #000000" colspan="4" | Rate
Sp	Su	Au	Wi
Rattata	B2			W2			Cave	14-17	45%
Zubat	B2			W2			Cave	14-17	45%
Grimer	B2			W2			Cave	15, 17	10%
Surfing
Grimer	B2			W2			Surfing	5-15	100%	100%	-	-
Rippling water
Grimer	B2			W2			Rippling water	5-20	95%	95%	-	-
Muk	B2			W2			Rippling water	5-20	5%	5%	-	-
Fishing
Grimer	B2			W2			Fishing	40-70	100%	100%	-	-
Rippling water
Grimer	B2			W2			Rippling water	40-60	90%	90%	-	-
Muk	B2			W2			Rippling water	50-70	10%	10%	-	-
class="roundybottom" style="background: #Template:City color light; color: #000000" colspan="14" | A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.

Trainers

Even when partnered with Hugh, Trainers other than the Team Plasma Grunts are engaged only in Single Battles, without Hugh.

If the player chose Snivy:

Pokémon Trainer Hugh Castelia Sewers Black 2 and White 2 Pokémon Trainer and Professor Hugh Oak Castelia Sewers Black 2 and White 2 Reward: N/A

Types: Fire Fighting Ability: Blaze Held item: Charcoal Pignite♂ Lv.20 Flame Charge Fire Physical   --       Arm Thrust Fighting Physical   --       Smog Poison Special   --       Defense Curl Normal Status   --       Types: Normal Flying Ability: Big Pecks Held item: None Pidove♂ Lv.18 Air Cutter Flying Physical   --       Leer Normal Status   --       Quick Attack Normal Physical   --       Roost Flying Status   --

If the player chose Tepig:

Pokémon Trainer Hugh Castelia Sewers Black 2 and White 2 Pokémon Trainer and Professor Hugh Oak Castelia Sewers Black 2 and White 2 Reward: N/A

Type: Water Unknown Ability: Torrent Held item: Mystic Water Dewott♂ Lv.20 Razor Shell Water Physical   --       Fury Cutter Bug Physical   --       Water Sport Water Status   --       Focus Energy Normal Status   --       Types: Normal Flying Ability: Big Pecks Held item: None Pidove♂ Lv.18 Air Cutter Flying Physical   --       Leer Normal Status   --       Quick Attack Normal Physical   --       Roost Flying Status   --

If the player chose Oshawott:

Pokémon Trainer Hugh Castelia Sewers Black 2 and White 2 Pokémon Trainer and Professor Hugh Oak Castelia Sewers Black 2 and White 2 Reward: N/A

Type: Grass Unknown Ability: Overgrow Held item: Miracle Seed Servine♂ Lv.20 Leaf Tornado Grass Special   --       Leech Seed Grass Status   --       Growth Normal Status   --       Wrap Normal Physical   --       Types: Normal Flying Ability: Big Pecks Held item: None Pidove♂ Lv.18 Air Cutter Flying Physical   --       Leer Normal Status   --       Quick Attack Normal Physical   --       Roost Flying Status   --

style="border-top-left-radius: 5px; -moz-border-radius-topleft: 5px; -webkit-border-top-left-radius: 5px; -khtml-border-top-left-radius: 5px; -icab-border-top-left-radius: 5px; -o-border-top-left-radius: 5px; background: #Template:City color light" | Trainer	style="border-top-right-radius: 5px; -moz-border-radius-topright: 5px; -webkit-border-top-right-radius: 5px; -khtml-border-top-right-radius: 5px; -icab-border-top-right-radius: 5px; -o-border-top-right-radius: 5px; background: #Template:City color light" | Pokémon
Janitor Felix カンキチ Kankichi Reward: $640	Lillipup♂ Lv.16 No item
	Trubbish♂ Lv.16 No item
Doctor Heath タイゾウ Taizō Reward: $1020	Sewaddle♂ Lv.17 No item
Worker Zack ザック Zack Reward: $680	Drilbur♂ Lv.17 No item
Team Plasma Grunt Reward: $1280 (w. Team Plasma Grunt)	Sandile♂ Lv.16 No item
Team Plasma Grunt Reward: $1280 (w. Team Plasma Grunt)	Scraggy♂ Lv.16 No item
Surf required during Spring and Summer; Normal access otherwise
Worker Scott Reward: $640	Timburr♂ Lv.17 No item
Autumn and Winter only
Scientist Caroline ユウコ Yūko Reward: $816	Grimer♀ Lv.17 No item
Surf required; Spring and Summer only
Scientist Clarke タカアキ Takaaki Reward: $816	Magnemite Lv.17 No item
Janitor Brady ムネノリ Munenori Reward: $1240	Marill♂ Lv.31 No item
	Cinccino♀ Lv.31 No item
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In the anime

Castelia Sewers in the anime.

The Castelia Sewers makes an appearance in A Venipede Stampede!. Burgh, Ash and his friends observe a Venipede stuck in one of the pipes and the Venipede gets freed with their help. Notably, this area appeared in the anime long before it was accessible in the games.

In other languages

Language Title French Égouts de Volucité German Stratos-Kanalisation Italian Fogne di Austropoli Korean 구름하수도 Gureum Hasudo Spanish Cloacas Porcelana colspan=3 style="background: #Template:City color light" |

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.