Hoenn walkthrough section
Pokemon Ruby and Sapphire Phase 4: Route 111 And The Winstrates
Heat Badge Leave Mauville north. Route 111 immediately introduces rocks that need Rock Smash and a desert you cannot enter yet because the sandstorm blocks your path.
Phase 4 Heat Badge Fiery Path, Fallarbor, Meteor Falls, Mt. Chimney, Flannery, and the desert. 04 / 10 
Phase 4 section 1 of 9
Leave Mauville north. Route 111 immediately introduces rocks that need Rock Smash and a desert you cannot enter yet because the sandstorm blocks your path.
Route 111 And The Winstrates
Leave Mauville north. Route 111 immediately introduces rocks that need Rock Smash and a desert you cannot enter yet because the sandstorm blocks your path. Clear what you can, then decide whether to fight the Winstrate family.
The Winstrate house is optional but useful. Four trainers fight back-to-back, so heal first. The reward and experience are worth it for normal runs, but Nuzlocke players should only enter with a healthy team and a plan for repeated chip damage.