The Seafloor Cavern is the slumbering place of Groudon and Kyogre.

Significant Events

  • Teams Aqua and Magma break off their alliance[1]
  • Team Aqua wakes up Kyogre and Team Magma wakes up Groudon[2]
  • Maxie uses the Jewels to control Groudon and Kyogre[3]
  • Amber steals the Blue Jewel from Mitch, delivering it to Archie
  • Archie betrays Amber and dooms him and Mitch to near-certain death
  • Ruby and Sapphire battle Archie and Maxie
  • Archie and Maxie are completely taken over by the Jewels, absorbing them into their bodies
  • Kyogre and Groudon call out to the Blue and Red Jewels, resulting in transporting everyone in the Seafloor Cavern to Sootopolis
  • The Seafloor Cavern collapses



Fork in the path

Located at the very bottom of Hoenn's seas, the Seafloor Cavern is only accessible through a submarine with a special component from Devon or on a Relicanth. At its entrance, there is a forked path. One path leads to Groudon, and the other to Kyogre.


  • In some translations, the Seafloor Cavern is mistakenly called the "Cave of Origin"
  • After their first battle, Kyogre and Groudon came here to slumber; after their second battle finishes and the Jewels are destroyed, Kyogre returns to the collapsed Seafloor Cavern, but Groudon goes to Mt. Chimney[4]
    • According to the Hoenn Director, this is a sign that they animosity has faded and they will not battle again[5]
  • Prior to the opening of the RS Arc, Steven Stone and his father had intended to use the Kaien I to collapse the entrance into the Seafloor Cavern, therefore ensuring that Teams Aqua and Magma could not reach Kyogre and Groudon[6]


  1. Pokémon Adventures: Chapter 233
  2. Pokémon Adventures: Chapter 234
  3. Pokémon Adventures: Chapter 234
  4. Pokémon Adventures: Chapter 264
  5. Pokémon Adventures: Chapter 264
  6. Pokémon Adventures: Chapter 254

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