Seafloor Cavern

:Not to be confused with Seafloor Cave (Friend Area).
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The Seafloor Cavern (Japanese: Seabed Cavern) is a location in Hoenn, deep beneath the water of . After surfacing inside the cave, there is a maze of tunnels to the deepest part, where / resides.
==In the games==
===Description===
In order to reach the cave, the must use and . Additionally, in , a will block access to the deeper rooms from the entrance until after Team Magma is defeated at the Mossdeep Space Center. Inside, is required for navigation; there are also breakable rocks, which cause to be required for navigation in the Generation III games, but not the Generation VI games.
In Pokémon Ruby and Omega Ruby, the cavern is the home of , who slumbers at its deepest part; in Pokémon Sapphire, Emerald, and Alpha Sapphire, the cavern is the home of , who slumbers at its deepest part (in Emerald, Groudon initially slumbers at the deepest part of the inside Mt. Chimney).
In Pokémon Ruby, Sapphire, and Emerald, the stolen Submarine Explorer 1 is parked at the bottom of the underwater area underneath the Seafloor Cavern. In Pokémon Omega Ruby and Alpha Sapphire, the stolen Submarine Explorer 1 is parked at the shore in the entrance chamber of the Seafloor Cavern.
In the deepest part, Maxie or Archie will attempt to control the super-ancient Pokémon using the orb he stole from Mt. Pyre. However, the Pokémon does not respond well, and instead will escape, causing harsh sunlight/extremely harsh sunlight or rain/heavy rain throughout eastern Hoenn; in Emerald, both rain and harsh sunlight appear, alternating back and forth at regular intervals.
===Items===
====Rock Smash====
===Pokémon===
====Generation III====
No Pokémon can appear by walking at the entrance or Groudon/Kyogre room.
====Generation VI====
=====Entrance=====
=====Room 1, room 2, and room 4=====
=====Room 5 and room 6=====
=====Room 3, room 7, room 8, and room 9=====
===Trainers===
====Pokémon Ruby====
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====Pokémon Sapphire====
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====Pokémon Emerald====
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====Pokémon Omega Ruby====
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====Pokémon Alpha Sapphire====
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===Layout===
Version	Underwater	Entrance	Room 1	Room 2	Room 3	Room 4	Room 5	Room 6	Room 7	Room 8	Deepest room
 	 	 	 	 	 	 	 	 	 	 	
 	 	 	 	 	 	 	 	 	 	 	
 	 	 	 	 	 	 	 	 	 	 	
  	  	  	 	 	 	 	 	 	 	 	 
===Music===
Games	Situation 	Song name (Japanese) 	Song name (English) 	Composition 	Arrangement
 	Overworld 	えんとつやま 	Mt. Chimney 	Go Ichinose 	Go Ichinose
 	When encountering Team Magma Grunt or Courtney 	マグマ団登場！ 	Team Magma Appears! 	Go Ichinose 	Go Ichinose
 	When encountering Team Aqua Grunt or Shelly or Archie 	アクア団登場！ 	Team Aqua Appears! 	Go Ichinose 	Go Ichinose
 	When battling Team Magma Grunt or Courtney/Team Aqua Grunt or Shelly 	戦闘！アクア・マグマ団 	Battle! (Team Aqua / Team Magma) 	Junichi Masuda 	Junichi Masuda
 	After defeating Team Magma Grunt, Courtney, or Maxie/Team Aqua Grunt, Shelly, or Archie	アクア・マグマ団に勝利！ 	Victory! (Team Aqua / Team Magma) 	Go Ichinose 	Go Ichinose
 	When battling Maxie/Archie 	戦闘！アクア・マグマ団のリーダー 	Battle! (Team Aqua/Team Magma Leaders) 	Junichi Masuda 	Junichi Masuda
 	When Groudon/Kyogre awakens 	目覚める超古代ポケモン 	The Super-Ancient Pokémon Awaken! 	Morikazu Aoki 	Morikazu Aoki
 	Underwater 	ダイビング 	Dive 	Go Ichinose 	Minako Adachi
 	Above land and in cave 	えんとつやま 	Mt. Chimney 	Go Ichinose 	Minako Adachi
 	When encountering Team Magma Grunt 	マグマ団登場！ 	Team Magma Appears! 	Go Ichinose 	Hideaki Kuroda
 	When encountering Team Aqua Grunt 	アクア団登場！ 	Team Aqua Appears! 	Go Ichinose 	Minako Adachi
 	When battling Team Magma Grunt/Team Aqua Grunt 	戦闘！アクア団・マグマ団 	Battle! (Team Aqua / Team Magma) 	Junichi Masuda 	Shota Kageyama
 	After defeating Team Magma Grunt or Maxie/Team Aqua Grunt or Archie 	アクア団・マグマ団に勝利！ 	Victory! (Team Aqua / Team Magma) 	Go Ichinose 	Minako Adachi
 	When battling Maxie/Archie 	戦闘！アクア団・マグマ団のリーダー 	Battle! (Team Aqua / Team Magma Leaders)	Junichi Masuda 	Minako AdachiHideaki Kuroda
 	Before Maxie/Archie awakens Groudon/Kyogre 	アクア団・マグマ団リーダーのテーマ 	Leader's Theme (Team Aqua / Team Magma) 	Junichi MasudaShota Kageyama	Shota Kageyama
 	When Groudon/Kyogre awakens 	目覚める超古代ポケモン 	The Super-Ancient Pokémon Awaken! 	Morikazu AokiHideaki Kuroda 	Hideaki Kuroda
 	After Maxie/Archie awakens Groudon/Kyogre 	崩壊へのカウントダウン 	Countdown to Destruction 	Shota Kageyama 	Shota Kageyama
==In the spin-off games==
===Pokémon Masters EX===
Artwork depicting the Seafloor Cavern is seen in and 's mindscapes.
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{| style="background: #; ; border: #; padding: 0px 5px 5px 5px"
==In animation==
===Pokémon Generations===
The Seafloor Cavern briefly appeared in a vision by Courtney in The Vision. Although the interior of the cavern wasn't shown, the top was depicted as a rocky island protruding from the water. At this rocky island, Primal appeared and attacked Team Magma.
It properly appeared in The Cavern, where it was shown that Team Aqua also visited it. Archie, Shelly, and three s went deep inside the cave and found a room where was resting. Archie woke it up with the Blue Orb, after which Kyogre transformed into Primal Kyogre and started to go on a rampage throughout the Hoenn region.
Seafloor Cavern PG.png|The protruding island
Seafloor Cavern interior PG.png|The caverns
==In the manga==
===Pokémon Adventures===
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The Seafloor Cavern first appeared in The Beginning of the End with Kyogre & Groudon I, where Team Magma and Team Aqua arrived there together thanks to them forming a temporary alliance to combine the Submarine Explorer 1, which had been stolen by Team Magma, with its heart component, which had had been stolen by Team Aqua, allowing them to dive deep enough to reach the undersea cave.
In The Beginning of the End with Kyogre & Groudon II, and were awakened by Team Aqua and Team Magma, respectively, with Maxie taking control of them both by using the Red and Blue Orbs, intending to give Groudon the advantage. However, in Very Vexing Volbeat, Maxie started to struggle, as controlling two Legendary Pokémon at the same time started to take too much of his mental capacity. As such, he gave the Blue Orb to Tabitha so that the could control Kyogre on his behalf. While doing what he had been ordered to do, Tabitha was ambushed by , who used his 's to steal the Blue Orb and deliver it to Archie. Archie then locked both Amber and Tabitha inside the Submarine Explorer 1 and sent it to dive on autopilot without its heart component in order to do away with the men inside.
In No Armaldo Is an Island, and reached the Seafloor Cavern thanks to the technique of Sapphire's , Relly. They started battling against Archie and Maxie, but were unable to retrieve the Orbs before the two were overcome by their power and ended up fusing with them. Maxie and Archie then grabbed Ruby and Sapphire, and started to fly away, the Orbs' powers being called by Groudon and Kyogre.
In It All Ends Now V, following the end of the weather crisis, Kyogre was revealed to have returned to slumber in the Seafloor Cavern, while Groudon had chosen to sleep inside Mt. Chimney instead.
The Seafloor Cavern is erroneously called the "Cave of Origin" in the Chuang Yi translations of Pokémon Adventures volumes , , and .
==Trivia==
* The Seafloor Cavern makes an appearance as a backdrop when a Pokémon from Hoenn is used in the Alola Photo Club in Pokémon Ultra Sun and Ultra Moon.
==In other languages==
==Related articles==
Category:Hoenn locations
Category:Ruby and Sapphire locations
Category:Emerald locations
Category:Omega Ruby and Alpha Sapphire locations
Category:Underwater locations
Category:Caves
de:Tiefseehöhle
es:Caverna Abisal
fr:Caverne Fondmer
it:Antro Abissale
ja:かいていどうくつ
zh:海底洞窟