Subzero Sauna Treasures, Castaway, and Onion Locations

Subzero Sauna in Pikmin 4 is a cave that can be found in Serene Shores. See all treasures, castaways, and onion locations in Subzero Sauna, 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%.

Subzero Sauna Map and Overview

Map

Map Location
Overworld Location

Overview

Location	Serene Shores
Castaways	2
Treasures	5
Onions	0
Pikmin	Ice Pikmin White Pikmin

How to Reach Subzero Sauna

Head North from the Starting Base

The starting base location is in the southwest part of Serene Shores. Head north, crossing the body of water, to reach the Subzero Sauna cave.

Subzero Sauna Bosses and Enemies

Bosses

Arctic Cannon Beetle

The Arctic Cannon Beetle's weak point is its back. Circle around the boss and wait for its wings to open and expose its back before throwing your Pikmin.

You can make the boss fight easier when you break the 3 ice pieces before the fight. This removes the frost effect in the cave, allowing you to use your other Pikmin.

List of All Bosses

Enemies

Snowy Blowhog	Arctic Cannon Larva	Iceblown Dweevil	Chillyhop
Puckering Blinnow

List of All Enemies

Subzero Sauna Treasure Locations

Sublevel 1

Subzero Sauna Treasures
Sublevel 1	Sublevel 2
Sublevel 3	-

Subzero Sauna Sublevel 1 Map
All Treasures
1	Gold Nugget Sparklium: 5	Use White Pikmin to destroy the poison gas and pick up 10 pieces of the Gold Nugget.
2	Disguised Delicacy Sparklium: 40	Use Ice Pikmin to break the Hydro Jelly to reveal the treasure.

Create White Pikmin to Collect Gold Nugget

If you go to the left side of the map, you can find a White Candypop Bud. Convert 5 Blue Pikmin into White Pikmin by throwing them into the bud. This allows you to destroy the poison gas and collect the Gold Nugget.

Don't Forget to Pick Up the Gold Nugget on the Right Side of the Map

You can find 5 pieces of Gold Nugget on the right side of the map. Be sure to collect them to obtain 100% completion rate for this cave.

Sublevel 2

Subzero Sauna Treasures
Sublevel 1	Sublevel 2
Sublevel 3	-

Subzero Sauna Sublevel 2 Map
All Treasures
1	Memory Fragment (Left Edge) Sparklium: 50	Let the Blue Pikmin pick up the treasure.
2	True Goo Sparklium: 80	Use Ice Pikmin to break the Hydro Jelly to reveal the treasure.

Break the Two Ice Pieces to Get Rid of the Cold

There are two ice pieces on the north and south corners of the second sublevel. Use Ice Pikmin to destroy them and remove the cold effect.

How to Get Ice Pikmin

Sublevel 3

Subzero Sauna Treasures
Sublevel 1	Sublevel 2
Sublevel 3	-

Subzero Sauna Sublevel 3 Map
All Treasures
1	Contemplation Station Sparklium: 300	Pick up the treasure from the ground.

Contemplation Station Requires 50 Pikmin

The last treasure on the 3rd sublevel requires 50 Pikmin to transport to the base. If you do not have enough Pikmin, you can go back to the surface to increase the count before returning to retrieve the treasure.

You can increase the max Pikmin limit when you obtain Flarlics.

How to Increase the Max Pikmin Limit

Subzero Sauna Castaway Locations

Rescue the Castaway on the Water at Sublevel 2

The first castaway can be found on the water at the second sublevel. Make sure to destroy the two ice pieces first so you can use Blue Pikmin to rescue the castaway.

Defeat Arctic Cannon Beetle for the Castaway to Appear at Sublevel 3

Defeat the Arctic Cannon Beetle on the 3rd Sublevel of the cave in order for the castaway to appear.

All Castaway Locations

Subzero Sauna 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

Subzero Sauna Tips and Strategies

Subzero Sauna Tips and Strategies
Bring Ice Pikmin and Blue Pikmin Break All the Ice to Get Rid of the Cold Use White Candypop Buds to Increase White Pikmin

Bring Ice Pikmin and Blue Pikmin

Pikmin to Bring
Ice Pikmin 30 or more	Blue Pikmin 10 or 20

Make sure to bring a lot of Ice Pikmin for this cave as they are the only Pikmin type that can be used in cold areas.

Bring at least 10 or 20 Blue Pikmin as they can pick up the treasures and castaways on bodies of water. You can then use any extra Blue Pikmin to turn them into White Pikmin.

Break All the Ice to Get Rid of the Cold

The frost effect as seen on the corners of the screen prevents you from using Pikmin types other than the Ice Pikmin. In addition, all bodies of water will be frozen.

To remove the frost effect, look for the ice pieces on the map and use Ice Pikmin to destroy them.

How to Get Ice Pikmin

Use White Candypop Buds to Increase White Pikmin

You can find White Candypop Buds on the first and second sublevel of the cave. These allow you to throw your Pikmin into the bud to turn them into White Pikmin. There is a limit to how many you can produce, so be sure not to waste any White Pikmin.

How to Get White Pikmin

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	-