Badge #13, Pt 1: Water Treatment Centre

Alas, there is. The mountains aren't really connected in any logical fashion, as far as I can tell; you go from 1F to 2F just by surfing.

Start at Ametrine Mountain 2F (accessible from Route 2), and surf down and left until you get to Celestrine Mountain 2F. Surf to the left to find a diving area; dive down to the underwater area, then go up and around to find another divable pool. Surface, then proceed up the waterfall to the north. This will spit you out in an area with a strength puzzle.

Slide the rocks in these directions, then slide upwards to find another small pool. Surf on it, then use waterpool to take you to Celestrine Mountain 4F; you will find some items here alongside TM03 Psyshock.

Additionally, if you return to the other side of Celestrine Cascade you can now surf up through the various waterfalls in Citrine Mountain. If you follow the path all the way up you will find the TM for Gyro Ball as well.

That's it for the mountains for a while; you'll come back here in the postgame for the Heatran quest.

This is the solution up until you fight PULSE Swalot.

Talk to Titania to have her jump across the rubbish piles; it's up to you to solve the rest of the puzzle. First, jump straight across the rubbish piles to unlock a gate to your left. Now, the perspective here makes it really hard to solve these puzzles sometimes, but you need to push the rubbish piles you jumped over first to allow you to jump past the broken turnstiles. The piles will always float upwards one tile when you re-raise the water level, so just push both piles right here.

Jump across and activate the computer at the top, which will activate the turnstile. The "G.U.M" room is locked, so go into the door at the right of the room to continue. You'll get a small cutscene and Titania gets trapped on an island.

First, get down on the floor and push the rubbish pile here. Then find the stairs at the top of the room and jump across to find an acolyte guarding the water level machine. Activate it to let Titania jump across, who will then open the shutter below. There's something a little bit weird about this puzzle... but we'll come back to that. Lower the water level again and proceed to the next room via the newly accessible stairs.

In the next room, walk all the way to the bottom to find a double battle with two acolytes (obviously, Titania kills them. Adult game for adults.) before Titania gets stuck on an island again. The water level changer is at the top left of the room, guarded by another acolyte, but it doesn't help you much yet.

Move the rubbish pile into position here first. You can hook it around the corner with the convenient cubby below. Raise the water level to have Titania jump across it.

Move the pile up to here again, and raise the water level to have Titania jump across it again and lower the shutter that was blocking your way. Lower the water level for a final time to open up a path via the stairs into the next room.

This will bring you back to the Central Obsidia room behind a turnstile that previously blocked your route. Activate the computer to activate the turnstile but don't go through it; instead, first go down the stairs to find a way to the previously blocked off rubbish piles here.

Don't get tricked; both piles need to be in the centre. Go back through the turnstile to activate the water level machine then jump across the moved patches to open the shutter that previously blocked you. Walk back up to the top, lower the level again, and walk back down through where the shutter was to find another set of stairs that you can use to access the next room - the central room.

After walking up a bit in here, you'll get another cutscene; this is the central turbine room. Titania takes the north, and you take the west; your instinct may be to ignore her and go straight north, but just go to the west door and activate the computer to unblock a one-way turnstile. There's nothing else in here, so we will actually go straight to the north. This leads back to the very first room, but now the shutter that was here previously is unblocked.

There's not much else to do, so move the rubbish piles in this room to the other side and raise the water level to jump over them. Hey, look: you're on the other side of the turnstile you just unlocked! Jump across the rubbish piles and activate the computer to unlock... the locked door at the top of the area (the System Storage room). You can get a Fennekin in here if you really want, but it's an extra puzzle I don't really feel like explaining here.

Go back through the turnstile, lower the water level, then make your way all the way back here (sigh) to open up the stairs. Follow them across the room into a new room, where you will find Titania again. The only path here is down the stairs and into some more acolytes; beat them for another cutscene where you need to find a way to open the door. You need to make your way to the Lapis room, so go back into the previous room (using the upper right door) then walk all the way along the stairs and up to the door at the top left of that room to find the Lapis area.

The path to your right is blocked off by a turnstile, so make your way up to the top right (battling another acolyte on your way there). Jump across the rubbish piles to make your way to the water level change machine.

This is a very non-obvious puzzle. You need to move the piles into place like this, raise the water level, and then jump across them vertically and loop back around to access the computer. Activate it to remove the shutter on the right side of the room, then lower the water level to expose the stairs to access the area. There's a table with the Beryl Grid Room Key on top of it; steal the key then return to Titania to unlock the door. This opens the door to the final room of the Water Treatment Plant, where Titania will promptly get stuck. She'll toggle the water level on and off as needed.

First, move the piles into this position (go up and around, or you'll have to reset the room) and jump across at high water.

In the upper area, move the piles into this position and jump across at high water.

Exit the room at the south and walk all the way across (through multiple rooms) to access the central turbine again, this time the other side of the shutter. Heal with the light shard, save, and then lower the water level to access PULSE Swalot.