Hoenn walkthrough section
Pokemon Ruby and Sapphire Phase 7: Route 124 And Mossdeep City
Mind Badge Once the hideout is cleared, surf east across Route 124 to Mossdeep City. Mossdeep has the seventh Gym, Steven's house, the Space Center, and access to late-game water routes.
Phase 7 Mind Badge Lilycove, Mt. Pyre, villain hideouts, Mossdeep, Tate and Liza, and Dive. 07 / 10 
Phase 7 section 6 of 8
Once the hideout is cleared, surf east across Route 124 to Mossdeep City. Mossdeep has the seventh Gym, Steven's house, the Space Center, and access to late-game water routes.
GuidePokemon Ruby and Sapphire
PhasePhase 7
Section6/8
Route 124 And Mossdeep City
Once the hideout is cleared, surf east across Route 124 to Mossdeep City. Mossdeep has the seventh Gym, Steven’s house, the Space Center, and access to late-game water routes.
Do not rush into Tate and Liza with only Fighting or Poison attackers. Their Psychic-type double battle is simple if you prepare and deeply annoying if you do not.