Hidden Grotto

Hidden Grotto (Japanese: Hidden Hollow) is a feature in that allows the to find with Hidden Abilities or items. The contents of the Hidden Grottoes are random, and if they are empty, for each 256 steps, they generally have a 5% chance to regenerate, usually with different content than what was inside on the previous visit; however, the chance can be increased (to 15%, 25%, 35%, or 55%) with the various levels of Grotto Pass Power. Hidden Grottoes will not regenerate unless the items are obtained or the Pokémon are or defeated by the player.
==Locations==
Twenty Hidden Grottoes are located all around Unova. Some areas have two Hidden Grottoes, while others have only one.
Area 	Locations
 	North of the western grass field, near the entrance to Accumula Town
 	
* In the north of the dark grass
* The northern portion of the pond (requires )
 	To the right of the trailer
 	
* In the southwest, north of the 
* In front of the entrance to Mistralton Cave (requires )
 	To the right of the house on the left
 	To the left of Shopping Mall Nine
 	
* Southwest of the two cuttable trees
* At the top of the stairs towards the entrance to Giant Chasm
 	To the south of the
 	In the northern part that is only accessible using the walkways
 	West side of the river on the upper level near the entrance to the Giant Chasm
Pinwheel Forest	
* Left of the body of water under the pair of bridges (interior area) (requires )
* Near Challenge Rock (exterior area)
Giant Chasm 	Near the entrance to the forest
Abundant Shrine	
* Near Wes
* Right of the shrine, across the water
Lostlorn Forest	In the northeast at ground level, to the right of where TM95 is found
Floccesy Ranch 	In the northeast corner (requires )
==Items==
Each Hidden Grotto has the same items available, with the exception of the Evolution stones. The chance that an item will be spawned when a Grotto is regenerated is normally 80% (40% for hidden items and 40% for visible items), but this decreases to 51.2% if any level of Grotto Pass Power is in effect.
===Items in each Hidden Grotto===
Every Grotto has a chance to spawn the following items at the following rates:
 Visible items
Item	Item 	Rate
 	 	12.5%
 	Great Ball 	5%
 	Ultra Ball 	2%
 	Potion 	6.25%
 	Super Potion	2.5%
 	Hyper Potion	1%
 	Repel 	6.25%
 	Super Repel 	2.5%
 	Max Repel 	1%
 Hidden items
Item	Item 	Rate
 	Damp Mulch 	6.25%
 	Growth Mulch	6.25%
 	Stable Mulch	6.25%
 	Gooey Mulch 	6.25%
 	TinyMushroom	7.5%
 	Big Mushroom	2.5%
 	Red Shard 	1%
 	Green Shard 	1%
 	Yellow Shard	1%
 	Blue Shard 	1%
 	Rare Candy 	0.25%
 	PP Up 	0.5%
 	PP Max 	0.25%
===Items in specific Hidden Grottoes===
Item	Item 	Rate 	Locations		
 	Fire Stone	0.25%	
{| style="text-align: left"	
* 
* (dark grass)
* 
* (near Breeder)
* 
* 
* (southwest from the two cuttable trees)
*	
* 
* 
* Floccesy Ranch
* Giant Chasm
* Abundant Shrine (near )
* Lostlorn Forest
* Pinwheel Forest (both)
 	 	 	
{| style="text-align: left"		
 	 	 	
{| style="text-align: left"		
 	 	 	
{| style="text-align: left"		
==Pokémon==
The chance that a Pokémon will be spawned when a Grotto is regenerated is normally 20%, but this increases to 48.8% if any level of Grotto Pass Power is in effect, because the game will reroll up to two additional times in search of a Pokémon as opposed to an item.
Pokémon that appear in Hidden Grottoes have non-standard gender distribution rates, and the gender of the Pokémon is predetermined and cannot be soft resetted for. Those species that are gender unknown, all-male, or all-female are unaffected. Most of the rest will be female 30% of the time, but , , , and will be female 60% of the time, , , and will be female 10% of the time, will be female 5% of the time, and in White 2 will never be female.
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===Abundant Shrine===
===Giant Chasm===
===Lostlorn Forest===
===Pinwheel Forest===
===Floccesy Ranch===
===Funfest Missions===
Three special Funfest Missions (one exclusive to each version, plus one that was event-exclusive) ask players to search for Pokémon in Hidden Grottoes, and also temporarily replace the contents of some of those Hidden Grottoes with Pokémon that do not normally appear there. These specially spawned Pokémon have a 20% chance to be female.
 
 
 
 
 
====Mission Distribution Dates====
Pokémon	Game language	Duration
 	Japanese 	December 22 to 31, 2012
 	Japanese 	November 10 to November 22, 2012; December 22 to 31, 2012
 	Japanese 	November 10 to November 22, 2012; December 22 to 31, 2012
 	Japanese 	November 10 to November 22, 2012; December 22 to 31, 2012
 	Japanese 	November 23 to December 7, 2012; December 22 to 31, 2012
 	Japanese 	November 23 to December 7, 2012; December 22 to 31, 2012
 	Japanese 	December 7 to 21, 2012; December 22 to 31, 2012
 	Japanese 	December 7 to 21, 2012; December 22 to 31, 2012
==Trivia==
* The ambient background music that plays in the Hidden Grottoes does not appear on the soundtrack for the games.
* If the player has a Repel active and it wears off on the final tile before the exit, they will be prevented from leaving until they move up and back down.
==In other languages==
==Related articles==
* Dual-slot mode
* Poké Radar
Category:Locations
Category:Black 2 and White 2 locations
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