Saunarator
Spoilers are on this page.
Players may want to avoid or be cautious toward reading this article/section.
The 
Saunarator is a structure located in the 
Caldera of 
Mount Hothead. To repair the Saunarator, the player must complete a series of quests that begins with the "Mount Mystery" quest and ends with the "Saunarator" quest.
When repaired, the Saunarator introduces a new weather event, 
Steam. A steam weather event occurs when the Saunarator activates. The player does not have to be nearby. The activation occurs randomly and cannot be influenced by the player. The weather forecast in the player’s menu tablet will show when it is an upcoming weather event.
After completing the "Rainy Day Delight" quest, the player will be able to manually activate the Saunarator once a week by crafting a 
Steam Island Stone and placing it into the Saunarator. Activating a weather machine causes the weather event to happen in a random region. A currently active machine cannot be manually activated until the weather event ends. Manually activating a machine during another weather event will end the other weather event even if they occur in different regions.
The weather forecast in the player’s menu tablet will show when it is an upcoming weather event and will occur in a random region of Friendship Island.
Steam
Steam lasts 15 minutes, and what appears during the steam depends on where it steams.
*Note: All regions will have steam vents appear; however, not all vents will have boulders which allow the player to collect steamdrops.
Thermals
Thermals blocked by boulders will only appear during a steam in 
Gemstone Mountain, 
Mount Hothead, or 
Spooky Swamp. When the boulder is broken with a 
Pickaxe, the player will receive 3x 
Steamdrops. There are 5x Thermals per steam period. They do not regenerate with the use of 
Island Bouquets. Even if the player was somewhere else during the steam event, the Thermals with boulders will stay spawned until the Steamdrop is collected or replaced by another steam event in the same region!
Steamdrops
Steamdrops are a type of currency obtained from breaking Thermals with boulders with a Pickaxe during steam. A total of 15 can be collected during a steam event.
Critters
When steam occurs in 
Thermals will not appear. Instead, the player will be able to catch 
Hearthling around the region.
*Note: Catching the Hearthling may require 
Keroppi's 
"Critter Friend" and 
"Critter Calmer" companion abilities.
Fish
When steam occurs in 
Seaside Resort, Thermals will not appear. Instead, the player will be able to catch 
Steamy Sunfish, which can be found by fishing by the Cozy Islands bridge.
Location
Map location of the Saunarator
