Castelia Sewers

Castelia Sewers

When you go down the stairs, Hugh will be down there and he'll suggest you team up in order to take on Team Plasma. He'll join your party for a bit, causing every wild Pokemon in the area to be a Double Battle, except with Hugh and his starter Pokemon as the second Pokemon on your side of the field (he controls it, so it can be somewhat random).

Castelia Sewers
Wild Pokemon Types Level(s) Rarity
Rattata Rattata Normal Lv. 14 ~ 17 45%
Zubat Zubat Poison / Flying Lv. 14 ~ 17 45%
Grimer Grimer Poison Lv. 15, 17 10%

Hugh leads with his starter Pokemon at level 20, which should be pretty strong at this point in the game. Because of that, don't focus on catching Pokemon down here until after you two have parted ways. On the bright side, he'll heal you up after every battle, which is awesome.

Sewer Seasons!

Depending on which season it is, the water level in the sewers may be up or it may be low, giving you access to other areas, but also requiring different navigation instructions to get through. Please make sure you read the appropriate section if you notice the water levels are lowered!

Water-filled Sewers (Summer)

Anyway, from the start, cross the bridge to the north and then take a left, following that path for awhile. You should eventually see two Plasma Grunts, as well as a TwistedSpoon right before them. Pick up the spoon and then challenge the Plasma Grunts. The first one uses a Scraggy L16 while the second uses a Sandile L16. It should be an easy fight thanks to Hugh.

After beating them, they'll run away like cowards, but then the Gym Leader, Burgh, will come walking out from another path. Hugh will then give you HM04 (Strength), which is an 80-power Physical-based Normal-type attack that actually hits pretty hard at this point in the game. It can be used outside of battle to push large boulders around, although keep in mind that you cannot forget this move unless you take the Pokemon knowing it to the Move Deleter in the Pokemon World Tournament (after the 5th Gym). 80 power should last you just fine until that point, though, and it's worlds better than Cut, so certainly consider it since Return probably isn't that strong yet.

Burgh will head back to his Gym, letting you fight him whenever you want, although there's still a bit more you can do in this sewer system. First of all, you can head up north to enter the Relic Passage should you so desire, or you choose to continue looking around the sewers.Once Hugh leaves, you and Burgh will start to head off, but then another voice will surprise you. Coming from the tunnel is a mysterious figure talking about Pokemon and such. He's an odd fellow, but doesn't bother to take the time to introduce himself, opting to walk off instead.

 

If you're continuing looking through the sewers, head on over to the west, into the room where Burgh came out of and you'll find a Heart Scale there. After you get your 5th Gym Badge, you can exchange these with the Reminder Girl to have her teach your Pokemon moves that it can learn by leveling up, up to its current level. This is very handy for reteaching moves you forgot that you want again, or also for learning certain moves that are only available at level 1 (Emboar gets Hammer Arm and Samurott gets Megahorn — both of which are pretty nice).

Now head back out and then south of where the Plasma Grunts, crossing a bridge. See the stairs that lead up? That takes you to the Castelia City Garden, where you can find some more wild Pokemon. Go ahead and check it out if you'd like, but, like the Relic Passage, I'm going to put it in its own section.

 

From that Clerk, head west across the bridge and then north. You'll find three bridges to cross now: two on the left and one on the right. The one on the right leads to a Worker who fights you with a Drilbur L17. Other than that, it's a dead end for now, so go back and take the left bridge, taking the branch heading left instead (you'll come back for the one heading up in a sec). Don't bother checking out anywhere west or south; just cross the bridge north now (the one on the left side) and follow the path there to find a Rare Bone. Head south in the sewers until you see a Janitor running around. He'll challenge you with his Lillipup L16 and Trubbish L16. Just past him is a bridge leading west. Over there is an X Special. Keep going west and you'll find a Clerk ♂, but he won't battle you.

There's a Researcher inside of that building who wants to see Poison-type Pokemon. She'll give you either a Potion, a Super Potion, or a Revive, randomly, and you can talk to her once per day.Now go back to just past the Clerk, over by the bridge you didn't check out yet (it crosses north and is in the top-left corner of the little "island"). This takes you up to a Doctor, who uses a Sewaddle L17. After you beat him, he'll fully heal your Pokemon, so don't worry so much about the fight against him. You can head either west or east; heading west leads to an empty room, so ignore that. Instead, go east, pick up the Leftovers, which heals 1/16th your Pokemon's HP between each turn when held in battle (very nice!), and then enter that door.

Water-drained Sewers (Autumn)

From the entrance, head down into the empty sewers and go west until you see two sets of stairs. Take the top set of stairs and then head west to find two Team Plasma Grunts that you must fight in a Double Battle, as well as a TwistedSpoon right before them. Pick up the spoon and then challenge the Plasma Grunts. The first one uses a Scraggy L16 while the second uses a Sandile L16. It should be an easy fight thanks to Hugh.

After beating them, they'll run away like cowards, but then the Gym Leader, Burgh, will come walking out from another path. Hugh will then give you HM04 (Strength), which is an 80-power Physical-based Normal-type attack that actually hits pretty hard at this point in the game. It can be used outside of battle to push large boulders around, although keep in mind that you cannot forget this move unless you take the Pokemon knowing it to the Move Deleter in the Pokemon World Tournament (after the 5th Gym). 80 power should last you just fine until that point, though, and it's worlds better than Cut, so certainly consider it since Return probably isn't that strong yet.

Once Hugh leaves, you and Burgh will start to head off, but then another voice will surprise you. Coming from the tunnel is a mysterious figure talking about Pokemon and such. He's an odd fellow, but doesn't bother to take the time to introduce himself, opting to walk off instead.

Burgh will head back to his Gym, letting you fight him whenever you want, although there's still a bit more you can do in this sewer system. First of all, you can head up north to enter the Relic Passage should you so desire, or you choose to continue looking around the sewers.

 

If you're continuing looking through the sewers, head on over to the west, into the room where Burgh came out of and you'll find a Heart Scale there. After you get your 5th Gym Badge, you can exchange these with the Reminder Girl to have her teach your Pokemon moves that it can learn by leveling up, up to its current level. This is very handy for reteaching moves you forgot that you want again, or also for learning certain moves that are only available at level 1 (Emboar gets Hammer Arm and Samurott gets Megahorn — both of which are pretty nice).

Now head back to the drained sewer bank and now climb up the bottom set of stairs. See the stairs that lead up, just to your left? That takes you to the Castelia City Garden, where you can find some more wild Pokemon. Go ahead and check it out if you'd like, but, like the Relic Passage, I'm going to put it in its own section.

 

Head south for a little bit in the sewers until you see some stairs leading down into the bottom level. Remember this point for later on! There's a lot to do if you keep going south or if you take the stairs down, but we're going to start by taking the stairs down, then head south until you see some more stairs to the left. Go up them and pick up the X Sp. Def. Head back down and cross through the gate to the south, then go west, and finally north at the fork in the road (heading south leads to a dead end).

Just up there, you can either take the steps up or keep heading north. Start by taking the going north and then following the path until you climb up some stairs. You'll have to face a Researcher, who uses a Grimer L17. The room right next to her is, unfortunately, empty.

Go back to where the steps leading up were and take them up to find a Worker with a Drilbur L17 on his team. Take him down, then take the stairs right by him down and across over to a Doctor, who uses a Sewaddle L17, but heals you fully after the battle — you can talk to him whenever your Pokemon need healing.

Just to the right of the Doctor are some Leftovers, which is a great held item that heals your Pokemon's HP by 1/16 of its maximum after each turn in battle. Inside of the room right next to the Leftovers is a Researcher who is researching stuff in the sewers. She'll give you either a Potion, a Super Potion, or a Revive, randomly, and you can talk to her once per day.

Now, head back towards the beginning, back to those steps that I told you to remember. Yeah, those ones. Go south instead until you find a Janitor, who uses a Lillipup L16 and Trubbish L16. Follow that path until you find some stairs, which you can take and then head west for a very long time. You'll run into a branch that leads north and west; the north path just leads to a dead end, so keep heading west until you find a whole ton of stairs. Take those stairs up, fight the Worker there and his Timburr L17. Grab the Pearl right next to him, but unfortunately that's all there is there for now thanks to that one-way ledge.

Aftermath

Well, that's about all there is to do down here in the sewers, although if you haven't checked out the Castelia Garden or the Relic Passage, now would be a great time to do so before taking on the Gym.

As you leave the sewers, Iris will tell you that Burgh went off to the Gym (thank you, Captain Obvious), so that sounds like the place you want to be!