View source for Cerulean Cave

{{Area|Location=Cerulean City|Maps=Cerulean Cave 1F,Cerulean Cave 2F,Cerulean Cave B1F|Type=Cave|Region=Kanto|BattleNPCs=5|Items=24|LandLevels=60|LandTier9=1|WaterLevels=59}}

'''{{PAGENAME}}''' is a [[Kanto]] cave that is situated on the outskirts [[Cerulean City]]. It can be entered from the northeasternmost expanse of land of the eponymous city, which is reachable from the waterway that confluently flows from [[Route 24]].

As one of the end-game training areas, it is only made accessible upon completing the [[Cerulean Cave (quest)|eponymous quest]]; since this prerequires extensive access to both regions, it will not be made accessible until one has completed the biregional gamut of gyms. Until the quest is completed, a guard will occlude your entry into this cave.

With the wild-Pokémon spawns averaging out in the high-50s and low-60s neighborhood and spawnsets that predominantly comprise evolved-stage Pokémon, this is considered the most potent training area in PRO. It also houses the highest-leveled NPC trainers that are known, thereby richening the experience-points payouts that are attainable from this area.

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==Notable miscellanies==
===Naero===
{{Main|Naero_(boss)|Naero}}

Naero is challengable on the basement floor of this cave. He cools down after 12 days; that duration is halved to 6 days with active [[membership]].

Defeating him will reap access to all [[Daycare Centers]] in PRO; by virtue of this access, you will also have tuteeship access to [[Egg Moves]], since the Egg Moves-tutors are stationed in each of them.

Naero also multitudinously rewards [[:Category:Baby-stage Pokémon|baby-stage Pokémon]] each time he is defeated.

===Mewtwo===
An overworld-interactable [[Mewtwo]] inhabits the basement floor.

While this Mewtwo is '''not''' catchable, you will automatically register its seen-data entry in your [[Pokédex]] by battling it; this is needed for the [[Mew (quest)|Mew quest]], which stipulates that 150 seen-data entries of [[:Category:Generation I Pokémon|Generation I Pokémon]] is needed in order to access Mew's inhabiting island, including Mewtwo's.

If you have battled this Mewtwo yet have lost its seen-data entry, you can use the restitutionary machine in Professor Oak's lab in [[Pallet Town]] in order to recover it.
===PP Up-vendor===
On the second floor, a [[PP Up]]-vendor will sell you the item for {{Pdollar}}15,000 apiece for up to 5 times per day.
==Wild Pokémon==
===1F===
====Land====
{{AreaLandSpawns|Location=Cerulean Cave 1F}}
====Water====
=====Surfing=====
{{AreaSurfSpawns|Location=Cerulean Cave 1F}}
=====[[Fishing]]=====
{{AreaFishingSpawns|Location=Cerulean Cave 1F}}
===2F===
{{AreaLandSpawns|Location=Cerulean Cave 2F}}
===B1F===
====Land====
{{AreaLandSpawns|Location=Cerulean Cave B1F}}
====Water====
=====Surfing=====
{{AreaSurfSpawns|Location=Cerulean Cave B1F}}

=====[[Fishing]]=====
{{AreaFishingSpawns|Location=Cerulean Cave B1F}}
==Items==
===1F===
{{AreaItems|Type=Cave|Contents=
{{AIR|Item=Rare Candy|Cooldown=14 days|Location=Hidden item. Shrouded under the large crystallic rocks slightly north-east of the entrance}}
{{AIR|Item=Revive|Cooldown=Not respawnable|Location=Hidden item. On the first small crystallic rock east of the south end of the bridge}}
{{AIR|Item=Full Restore|Cooldown=Not respawnable|Location=Hidden item. Between the two southmost rows of crystallic rocks}}
{{AIR|Item=Hyper Potion||Cooldown=Not respawnable|Location=Hidden item. Enclosed in the Rock smash rocks in the southwest corner}}
{{AIR|Item=Nugget|Cooldown=19 days|Location=In the north-west corner of the floor, next to the closest ladder to the water exit}}
{{AIR|Item=Sea Incense|Cooldown=Not respawnable|Location=At the end of the path following the north-west exit of the bridge}}
{{AIR|Item=Max Elixir|Cooldown=Not respawnable|Location=On the mountainside east of the bridge's trisection}}
}}

===2F===
{{AreaItems|Type=Cave|Contents=
{{AIR|Item=Ultra Ball|Cooldown=Not respawnable|Location=In the middle-west part, at the end of the path from taking the westmost ladder}}
{{AIR|Item=PP Up|Cooldown=Not respawnable|Location=Hidden item. On the isolated crystallic rock at the end of the opposite path to the PP seller}}
{{AIR|Item=Odd Incense|Cooldown=Not respawnable|Location=At the end of the path east from the middle-southmost path}}
{{AIR|Item=Full Heal|Cooldown=Not respawnable|Location=Hidden item. At the end of the mini-path directly north of the south-eastmost ladder}}
{{AIR|Item=Zinc|Cooldown=Not respawnable|Location=Hidden item. At the north-east end of the path from the south-eastmost ladder}}
{{AIR|Item=Ultra Ball|Cooldown=Not respawnable|Location=Hidden item. At the north-west end of the path from the south-eastmost ladder}}
{{AIR|Item=PP Up|Cooldown=Not respawnable|Location=At the end of the path that extends from the westmost path}}
{{AIR|TM=Thunderbolt|Cooldown=Not respawnable|Location=At the end of the path from the north-eastmost ladder. Requires Rock Smash}}
{{AIR|Item=Protein|Cooldown=Not respawnable|Location=Hidden item. Behind the westmost crystallic rock near the north-westmost ladder}}
}}

===B1F===
{{AreaItems|Type=Cave|Contents=
{{AIR|Item=Max Potion|Cooldown=12 days|Location=Hidden item. Cornered by two Rock Smash rocks immediately north-east from the westmost ladder}}
{{AIR|Item=Ultra Ball|Cooldown=Not respawnable|Location=In the west side along the staircase path south of the westmost ladder}}
{{AIR|Item=Dusk Stone|Cooldown=Not respawnable|Location=At the end of a narrow horizontal path south-east from the westmost ladder}}
{{AIR|Item=Revive|Quantity=1-3|Cooldown=Not respawnable|Location=At the end of the north-east path from the westmost ladder}}
{{AIR|Item=Ultra Ball|Cooldown=Not respawnable|Location=Hidden item. At the end of the path that follows west from exitting the water in the middle of the floor. Requires Rock Smash}}
{{AIR|Item=Nugget|Cooldown=Not respawnable|Location=Hidden item. On the only crystallic rock blocked by a Rock Smash rock in the middle north of the floor)}}
{{AIR|Item=Black Sludge|Cooldown=Not respawnable|Location=In the south-east corner of the floor}}
{{AIR|Item=Electirizer|Cooldown=Not respawnable|Location=In the north-east corner of the floor]}}
}}

==NPC Battlables==
===2F===
{{NPCTable|Location={{PAGENAME}} 2F|Type=Cave|Contents=
{{NPCTrainer|Class=Old Man|Name=Trevor|Lineup=
{{NPCLineup|Pokemon=Omastar,Kabutops,Aerodactyl|Levels=85,86,87}}
}}
{{NPCTrainer|Class=Lass|Name=Lara|Lineup=
{{NPCLineup|Pokemon=Venusaur,Charizard,Blastoise|Levels=80,80,80}}
}}
{{NPCTrainer|Class=Hiker|Name=John|Lineup=
{{NPCLineup|Pokemon=Crobat,Noctowl,Ledian|Levels=86,87,87}}
}}
{{NPCTrainer|Class=Nurse Joy|Lineup=
{{NPCLineup|Pokemon=Happiny,Chansey,Blissey|Levels=90,90,90}}
}}
{{NPCTrainer|Class=Lass|Name=Janette|Lineup=
{{NPCLineup|Pokemon=Vaporeon,Jolteon,Flareon,Espeon,Umbreon,Eevee|Levels=80,80,80,80,80,80}}
}}
}}

===B2F===
====Naero====
{{Main|Naero_(boss)|Naero}}

{{GymLeaderLineup|NPC=Naero|Lineup=Togekiss,Snorlax,Mr. Mime,Blissey,Magmortar,Electivire|Moves0=Thunder Wave,Air Slash,Flamethrower,Roost|Moves1=Crunch,Body Slam,Rest,Sleep Talk|Moves2=Icy Wind,Psychic,Confuse Ray,Shadow Ball|Moves3=Seismic Toss,Softboiled,Thunder Wave,Flamethrower|Moves4=Thunder Punch,Cross Chop,Flamethrower,Ice Punch|Moves5=Thunderbolt,Earthquake,Lava Plume,Focus Blast}}
====[[Mewtwo]]====
{{OverworldPokemon|Pokemon=Mewtwo|Moves=Thunderbolt,Psychic,Ice Beam,Blizzard}}