Giant Chasm

Access to:
South: Route 13

Utility:
Strength is required to access two Star Pieces and a Comet Shard.
Surf can be used here to encounter wild Pokémon.

After capturing Kyurem, the northern parts of the caves become inaccessible.

Pokémon

Wild Swellow have a 5% chance of holding a Charti Berry.
Wild Lunatone have a 5% chance of holding a Moon Stone and a 1% chance of holding a Comet Shard (in dark grass only).
Wild Solrock have a 5% chance of holding a Sun Stone and a 1% chance of holding a Comet Shard (in dark grass only).
Wild Audino have a 50% chance of holding an Oran Berry and a 5% chance of holding a Sitrus Berry.
Wild Emolga always hold a Cheri Berry.
Wild Jynx always hold an Aspear Berry.
Wild Sneasel have a 50% chance of holding a Grip Claw and a 5% chance of holding a Quick Claw.
Wild Boldore have a 50% chance of holding an Everstone and a 5% chance of holding a Hard Stone.
Wild Red-Striped Basculin have a 5% chance of holding a DeepSeaTooth.
Wild Blue-Striped Basculin have a 5% chance of holding a DeepSeaScale.
Wild Poliwhirl and Poliwrath have a 5% chance of holding a King's Rock.
Wild Clefairy and Clefable have a 50% chance of holding a Leppa Berry, a 5% chance of holding a Moon Stone, and a 1% chance of holding a Comet Shard (in dark grass only).
Wild Ditto have a 50% chance of holding Quick Powder and a 5% chance of holding Metal Powder.
Wild Metang and Metagross have a 5% chance of holding a Metal Coat.

Walking (Entrance)

Walking (Entrance, dark grass)

Walking (Entrance, rustling grass)

Walking (Cave)

Walking (Cave, dust clouds)

Surfing (Cave and cave depths)

Surfing (Cave and cave depths, rippling water)

Fishing (Cave and cave depths)

Fishing (Cave, rippling water)

Walking (Crater forest)

Walking (Crater forest, dark grass)

Walking (Crater forest, rustling grass)

Walking (Cave depths)

Walking (Cave depths, dust clouds)

Fishing (Cave depths, rippling water)

Static (Cave depths)

All Versions
Pokémon		Level	Notes
	Kyurem	75	Only one. If defeated or run from, it reappears after defeating the Elite Four.

Hidden Grotto Pokémon
Rate	Levels
Clefairy	15%	lv. 45-50
Sneasel	2%	lv. 45-50
Metang	2%	lv. 45-50
Ditto	1%	lv. 45-50

All Versions
Games	Level	Notes
Kyurem (Black)	B2	W2	55	It cannot be captured and must be defeated.
Kyurem (White)	B2	W2	55	It cannot be captured and must be defeated.
Kyurem	B2	W2	70	Only after encountering Zekrom/Reshiram in Dragonspiral Tower. If defeated or run from it, it will reappear after defeating the Elite Four.

Items

Cave

Black and White Items (Cave)
Item	Location	Notes
Big Mushroom	On a rock northwest of the entrance	Hidden.
Star Piece	Northeast of the southwest corner	Requires Strength.
Star Piece	East of the northwestern corner	Requires Strength.
TinyMushroom	On a rock near the northwestern corner	Hidden.
TinyMushroom	On a rock between the northern Strength boulders	Hidden.
Comet Shard	Behind a Strength boulder in the northeastern corner	Requires Strength.

Crater forest

Black and White Items (Crater forest)
Item	Location
Max Elixir	In the southwestern corner
Max Potion	Near the trees north of the entrance
Revive	Near a dark grass patch in the northwest
Carbos	Between two rocks south of the northern wall
TM13 Ice Beam	Southwest of the stairs leading to Kyurem
Full Heal	Near a dark grass patch in the east
Max Revive	In the southeastern corner of the forest
TM03 Psyshock	In the southern part of the forest

Dust clouds

The following items can be found by stepping in a dust cloud.

Fire Gem	Water Gem	Electric Gem	Grass Gem	Ice Gem	Fighting Gem
Poison Gem	Ground Gem	Flying Gem	Psychic Gem	Bug Gem	Rock Gem
Ghost Gem	Dragon Gem	Dark Gem	Steel Gem	Normal Gem	Fire Stone
Water Stone	Thunderstone	Leaf Stone	Moon Stone	Sun Stone	Shiny Stone
Dusk Stone	Dawn Stone	Oval Stone	Everstone	Hard Stone

Items

Entrance

Black 2 and White 2 Items (Entrance)
Item	Location	Notes
Yellow Shard	Near the broken bridge
Moon Stone	On the broken bridge	Hidden.
Max Potion	In the southern grass patch	Hidden.

Cave

Black 2 and White 2 Items (Cave)
Item	Location	Notes
Star Piece	On a rock near the southern exit	Hidden.
Star Piece	Behind a boulder in the northwest	Requires Strength.
Max Repel	Northeast of the southwestern corner	Requires Strength.
Ultra Ball	In the niche in the northwest corner	Hidden.
Ice Gem	Behind a Strength boulder in the northeastern corner	Hidden. Requires Strength.
TM13 Ice Beam	At the northern end of the pool of water near the entrance to Route 22	Requires Surf.

Crater forest

Black 2 and White 2 Items (Crater forest)
Item	Location	Notes
Max Revive (3x)	Obtained from Rood	Only after defeating the Team Plasma Grunt.
Razor Claw	In the southwestern corner
Moon Stone	Along the western wall, near the southwestern corner
TM03 Psyshock	West of where the Plasma Frigate was	Only after defeating Ghetsis.
Star Piece	In the southeastern corner	Only after defeating Ghetsis.
PP Up	East of where the Plasma Frigate was	Only after defeating Ghetsis.
Carbos	Near a dark grass patch in the northwest	Only after defeating Ghetsis.
Sun Stone	In a dead end north of the center	Only after defeating Ghetsis.

Cave depths

Black 2 and White 2 Items (Cave depths)
Item	Location	Notes
DNA Splicers	Dropped by Kyurem	Only after catching it.

Hidden Grotto

When a Hidden Grotto's contents regenerate, there is an 80% chance for an item to be spawned: 40% for visible items and 40% for hidden items. The following items may be generated.

Hidden Grotto items (visible)
Item	Rate
Poké Ball	12.5%
Potion	6.25%
Repel	6.25%
Great Ball	5%
Super Potion	2.5%
Super Repel	2.5%
Ultra Ball	2%
Hyper Potion	1%
Max Repel	1%
Fire Stone	0.25%
Water Stone	0.25%
Thunderstone	0.25%
Leaf Stone	0.25%

Hidden Grotto items (hidden)
Item	Rate
TinyMushroom	7.5%
Damp Mulch	6.25%
Growth Mulch	6.25%
Stable Mulch	6.25%
Gooey Mulch	6.25%
Big Mushroom	2.5%
Red Shard	1%
Green Shard	1%
Yellow Shard	1%
Blue Shard	1%
PP Up	0.5%
Rare Candy	0.25%
PP Max	0.25%

Dust clouds

The following items can be found by stepping in a dust cloud.

Fire Gem	Water Gem	Electric Gem	Grass Gem	Ice Gem	Fighting Gem
Poison Gem	Ground Gem	Flying Gem	Psychic Gem	Bug Gem	Rock Gem
Ghost Gem	Dragon Gem	Dark Gem	Steel Gem	Normal Gem	Fire Stone
Water Stone	Thunderstone	Leaf Stone	Moon Stone	Sun Stone	Shiny Stone
Dusk Stone	Dawn Stone	Oval Stone	Everstone	Hard Stone

Trainer	Party	Notes
Team Plasma Grunt	Weezing lv. 43 (Easy Mode) / 47 (Normal Mode) / 51 (Challenge Mode) Muk lv. 43 (Easy Mode) / 47 (Normal Mode) / 51 (Challenge Mode)	In the crater forest.
Ghetsis	Cofagrigus lv. 46 (Easy Mode) / 50 (Normal Mode) / 54 (Challenge Mode) @ Leftovers Seismitoad lv. 46 (Easy Mode) / 50 (Normal Mode) / 54 (Challenge Mode) Eelektross lv. 46 (Easy Mode) / 50 (Normal Mode) / 54 (Challenge Mode) Drapion lv. 46 (Easy Mode) / 50 (Normal Mode) / 54 (Challenge Mode) Toxicroak lv. 46 (Easy Mode) / 50 (Normal Mode) / 54 (Challenge Mode) Hydreigon lv. 48 (Easy Mode) / 52 (Normal Mode) / 56 (Challenge Mode) @ Life Orb	In the cave depths.

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Giant Chasm

Pokémon

Walking (Entrance)

Walking (Entrance, dark grass)

Walking (Entrance, rustling grass)

Walking (Cave)

Walking (Cave, dust clouds)

Surfing (Cave and cave depths)

Surfing (Cave and cave depths, rippling water)

Fishing (Cave and cave depths)

Fishing (Cave, rippling water)

Walking (Crater forest)

Walking (Crater forest, dark grass)

Walking (Crater forest, rustling grass)

Walking (Cave depths)

Walking (Cave depths, dust clouds)

Fishing (Cave depths, rippling water)

Static (Cave depths)

Pokémon

Walking (Entrance)

Walking (Entrance, dark grass)

Walking (Entrance, rustling grass)

Walking (Cave and cave depths)

Walking (Cave and cave depths, dust clouds)

Surfing (Cave and cave depths)

Surfing (Cave and cave depths, rippling water)

Fishing (Cave and cave depths)

Fishing (Cave and cave depths, rippling water)

Walking (Crater forest and cave depths)

Walking (Crater forest and cave depths, dark grass)

Walking (Crater forest and cave depths, rustling grass)

Hidden Grotto

Static (Cave depths)

Items

Cave

Crater forest

Dust clouds

Items

Entrance

Cave

Crater forest

Cave depths

Hidden Grotto

Dust clouds

Trainers