Onix Tunnel

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Onix Tunnel
イワークの洞窟 Iwark's Cave
Onix Tunnel entrance.png
Onix Tunnel
Region Johto
Debut Tunnel Vision
Inside Onix Tunnel

The Onix Tunnel (Japanese: イワークの洞窟 Iwark's Cave) is an anime-exclusive location in Johto located between Azalea Town and Goldenrod City.

The Onix Tunnel is a cave that possesses many stalagmites and stalactites, some of which drip water. Many Onix can be found there, and thus served as obstacles preventing further travel through the cave in much of the episode. However, upon recovering the marker-microphone, Jigglypuff sang the Onix to sleep. Later, Brock deduced that the echoing properties of the cave probably made the song stronger. The group travels through the cave, Team Rocket attempting to travel through it as well but inadvertently awaking the Onix. Subsequently, Team Rocket finds themselves in some trouble, Jessie even wishing that Team Rocket was blasting off.

Pokémon seen in Onix Tunnel

Onix Rock Throw.png
Onix (multiple)


  • The Onix Tunnel resembles the Union Cave in the game, as both contain wild Onix and can be entered from Azalea Town.

In other languages

Language Title
Germany Flag.png German Onix-Tunnel
Italy Flag.png Italian Galleria degli Onix
Poland Flag.png Polish Tunel Onixów (EP149-EP150)
Tunel Onix (EP149)

Anime-exclusive locations in Johto
Alto MareArborvilleBattle ParkBig TownBloomingvaleBluefinlandBlue LagoonBlue Moon FallsBlue Point IsleBonitavilleCatallia City
Charicific ValleyClarity LakeCoastline GymDiglett VillageDragon Holy LandEggseterFlorandoGreenfieldHappy TownInland City
Kasado CityLake LucidLake of LifeLake SlowpokeLen TownMarine Pokémon LaboratoryMarion TownMaroon TownMegi City
Mount QuenaOgi CityOgi IsleOnix TunnelPalm HillsPalmponaPokémon Jujitsu AcademyPudgy Pidgey IslePurity CanyonPurity River
Red Rock IsleRemoraid LakeRemoraid MountainRikishii TownScarlet CitySecret GardenSilver Rock IsleSilver TownSlowpoke Temple
Snowtop MountainSunflora LodgeTransit TownWay Away IslandWhirl Cup ColosseumWhitestoneWobbuffet VillageYellow Rock Isle
Anime-location templates
KantoOrange ArchipelagoJohtoHoennSinnohUnovaDecolore IslandsKalosAlolaOther

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