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Pokemon Ruby and Sapphire Phase 8: Dive Route Setup

Rain Badge

Teach Dive after receiving HM08 from Steven. From Mossdeep, surf south through Routes 127 and 128, then use Dive on Route 128 to search for the underwater entrance to the Seafloor Cavern.

Game Boy Advance Pokemon Ruby / Sapphire Phase 8 Rain Badge Seafloor Cavern, legendary crisis, Sootopolis, Wallace, and Waterfall. 08 / 10 Kyogre artwork Groudon artwork
By Damodar Sharma Updated May 28, 2026 Walkthrough

Phase 8 section 1 of 7

Teach Dive after receiving HM08 from Steven. From Mossdeep, surf south through Routes 127 and 128, then use Dive on Route 128 to search for the underwater entrance to the Seafloor Cavern.

GuidePokemon Ruby and Sapphire PhasePhase 8 Section1/7

Dive Route Setup

Teach Dive after receiving HM08 from Steven. From Mossdeep, surf south through Routes 127 and 128, then use Dive on Route 128 to search for the underwater entrance to the Seafloor Cavern.

Bring Repels if random Tentacool and Wingull encounters are slowing you down. Also bring Escape Rope or enough healing to leave safely after the cavern if your team gets worn down.

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