Engulfed Castle Treasures, Castaway, and Onion Locations

Engulfed Castle in Pikmin 4 is a cave that can be found in Serene Shores. See all treasures, castaways, and onion locations in Engulfed Castle, the bosses and enemies found in it, as well as how to reach it, its map, and tips and strategies on how to complete it 100%.

All Engulfed Castle Guides
Engulfed Castle Guide	How to Beat Waterwraith

Engulfed Castle Map and Overview

Map

Map Location
Overworld Location

Overview

Location	Serene Shores
Castaways	2
Treasures	17
Onions	0
Pikmin	Blue Pikmin Purple Pikmin

How to Reach Engulfed Castle

Head North of the Starting Base

Travel through the water area, passing the bridge and finding a path towards the Engulfed Castle's cave entrance.

Engulfed Castle Bosses and Enemies

Bosses

Waterwraith

Throw Purple Pikmin on its back side to attack the Waterwraith and reduce its HP. Once the boss swipes away your Pikmin, use the whistle immediately to call them back and to avoid getting run over by the boss' rollers.

It is recommended to use the Candypop Bud in front of the boss room to get Purple Pikmin. This Pikmin type has the strength of 10 regular Pikmin and is vital for defeating the Waterwraith.

List of All Bosses

Enemies

Fiery Blowhog	Anode Dweevil	Fiery Dweevil	Fiery Dweevil
Pearly Clamclamp	Albino Dwarf Bulborb	Joustmite	Pyroclasmic Slooch
Fiery Bulblax	Venom Dweevil	Startle Spore	Moldy Dwarf Bulborb
Withering Blowhog	Wollyhop

List of All Enemies

Engulfed Castle Treasure Locations

Sublevel 1

Jump to a Sublevel
Sublevel 1	Sublevel 2	Sublevel 3
Sublevel 4	Sublevel 5	-

Engulfed Castle Sublevel 1 Map
All Treasures
1	Hoop of Passion Sparklium: 130	Pick up on the ground.
2	Vanishing Cookie Sparklium: 50	Defeat the Bulborb for the treasure to appear.
3	Secured Satchel Sparklium: 150	Press the switch to lower the fence and reach the treasure.
4	Juicy Gaggle Sparklium: 20	Pick up on the puddle.
5	Ice Sword Sparklium: 5	Pick up on the puddle.

Sublevel 2

Jump to a Sublevel
Sublevel 1	Sublevel 2	Sublevel 3
Sublevel 4	Sublevel 5	-

Engulfed Castle Sublevel 2 Map
All Treasures
1	Crush Nugget Sparklium: 20	Two pieces will appear after you defeat the Bulborb.
2	Daughter of the Earth Sparklium: 110	Command Oatchi to sniff out the treasure to find its exact spot then command him to dig up the sweet potato.

Sublevel 3

Jump to a Sublevel
Sublevel 1	Sublevel 2	Sublevel 3
Sublevel 4	Sublevel 5	-

Engulfed Castle Sublevel 3 Map
All Treasures
1	Scaly Custard Sparklium: 70	Throw the Pikmin towards the treasure on the ceiling to drop it on the floor.
2	Child of the Earth Sparklium: 50	Command Oatchi to sniff out the treasure to find its exact spot then command him to dig up the potato.
3	Memory Fragment (Bottom...Probably?) Sparklium: 50	Pick it up on the ledge.

Sublevel 4

Jump to a Sublevel
Sublevel 1	Sublevel 2	Sublevel 3
Sublevel 4	Sublevel 5	-

Engulfed Castle Sublevel 4 Map
All Treasures
1	Turn-of-Events Track Sparklium: 150	Appears after destroying the sticky mold.
2	Difficult-Choice Totem Sparklium: 20	Destroy the Poisonous Mushroom with Bomb Rocks and find the treasure behind it.
3	Insect Condo Sparklium: 90	Defeat the large enemy on the 4th sublevel.
4	Velvety Dreamdrop Sparklium: 40	Pick it up on the ground.

Sublevel 5

Jump to a Sublevel
Sublevel 1	Sublevel 2	Sublevel 3
Sublevel 4	Sublevel 5	-

Engulfed Castle Sublevel 5 Map
All Treasures
1	Glinty Circular Disc Sparklium: 80	Defeat the Waterwraith boss for the treasure to appear.
2	Noble Goo Sparklium: 80	Dig it out from the ground.

Engulfed Castle Castaway Locations

On the Narrow Passageway West of the Map at Sublevel 2

You can find the first castaway on a clam at the narrow passageway west of the 2nd sublevel.

Beside the Exit at Sublevel 5

You can find the second castaway near the exit point once you have defeated the Waterwraith.

All Castaway Locations

Engulfed Castle Onion Locations

No Onions

There are no onions in this cave.

All Onion Locations

No Flarlics

There are no flarlics in this cave.

All Flarlic Locations

Engulfed Castle Tips and Strategies

Engulfed Castle Tips and Strategies
You Can Only Bring Blue Pikmin Lure Burning Enemies In the Water or Use Bomb Rocks Waterwraith Can Only Be Defeated at the 5th Sublevel Watch Out for Obstacles Focus on Clearing the Cave

You Can Only Bring Blue Pikmin

Pikmin to Bring
Blue Pikmin

Since the entrance of the cave is underwater, you can only bring Blue Pikmin with you. Note that the cave contains obstacles such as fire, electricity, poison, which may harm your Blue Pikmin if you are not careful.

How to Get Blue Pikmin

You Can Use Other Pikmin After Clearing the Cave

Once you clear the cave, you will emerge from a different exit point. With this in mind, you can take other Pikmin types with you if you want to explore the cave again.

All 9 Pikmin Types

Lure Burning Enemies In the Water or Use Bomb Rocks

Bomb Rock Uses and How to Get

Waterwraith Can Only Be Defeated at the 5th Sublevel

Waterwraith Explanation/Puzzle Solution
・Appears in the cave after 5 minutes. ・Pikmin will instantly die if they get run over by its rollers. ・Cannot be attacked unless you have Purple Pikmin. ・Can only be defeated in a boss fight once you reach the 5th sublevel.

A transparent enemy that uses a steamroller-like vehicle called Waterwraith will appear on the sublevels along the way. This enemy cannot be attacked until you fight it as a boss on the 5th sublevel.

If the enemy appears on the sublevel, it is recommend to find the door that leads to the next sublevel to flee from it.

Stops Appearing After You Clear the Cave

Once you complete the cave, the Waterwraith will no longer appear in any of the sublevels. If you find it difficult to explore the cave with it, you can ignore the treasures and focus on clearing the cave first.

How to Beat Waterwraith

Watch Out for Obstacles

Aside from the Waterwraith, there are other obstacles to watch out for when exploring the Engulfed Castle. See the table below for the list of obstacles and their puzzle solution.

Obstacle	Explanation/Solution
Red Spider	・Appears whenever you transport treasure. ➤ Transport the treasure when there are no enemies nearby.
Sticky Moss	・ Running speed decreases when walking around the sticky moss. ➤ Destroy the sticky moss before the Waterwraith appears.
Poisonous Mushroom	・Poison appears when you attack the mushroom ➤ Destroy with a Bomb Rock

Focus on Clearing the Cave

If you find it difficult to explore the cave, you can ignore the treasures and focus on clearing it as soon as possible.

Once you clear the cave, the Waterwraith will no longer appear and you can use other Pikmin types to explore and gather the treasures.

Pikmin 4 Related Guides

List of All Cave Locations and Maps

All Rescue Command Post Caves

Rescue Command Post Cave
Burrow of Beginnings

All Sun-Speckled Terrace Caves

Sun-Speckled Terrace Caves
Last-Frost Cavern	Hectic Hollows
Crackling Cauldron	Industrial Maze
Aquiferous Summit	-

All Blossoming Arcadia Caves

Blossoming Arcadia Caves
Secluded Courtyard	Drafty Gallery
Sightless Passage	Kingdom of Beasts

All Serene Shores Caves

Serene Shores Caves
Subzero Sauna	Seafloor Resort
Below-Grade Discotheque	Engulfed Castle

All Hero's Hideaway Caves

Hero's Hideaway Caves
Plunder Palace	Doppelganger's Den
Frozen Inferno	-

All Giant's Hearth Caves

Giant's Hearth Caves
Dream Home	Ultimate Testing Range
Cradle of the Beast	-

All Primordial Thicket Caves

Primordial Thicket Caves
Subterranean Swarm	The Mud Pit
Cavern for a King	-