Pokémon Ruby & Sapphire walkthrough · Part 4 of 10

Part 4: Beat Wattson — Mauville City Gym, badge 3

Beat Wattson — Mauville City Gym, badge 3 opens 9 areas. There are 37 trainers standing in them. The fight at this checkpoint is Wattson.

Where to go

  1. Meteor Falls

    Wild: Barboach 100% · Lv 20-45, Golbat 90% · Lv 30-35, Zubat 90% · Lv 5-35, Magikarp 70% · Lv 5-10 +5 more

    Trainers: Dragon Tamer Nicolas Lv 38, Old Couple John & Jay Lv 40

  2. Jagged Pass

    Wild: Numel 55% · Lv 18-20, Machop 25% · Lv 18-20, Spoink 20% · Lv 18-20

    Trainers: Camper Ethan Lv 21, Hiker Eric Lv 21, Picnicker Diana Lv 20

  3. Fiery Path

    Wild: Numel 30% · Lv 15-16, Grimer 25% · Lv 15-16, Koffing 25% · Lv 15-16, Torkoal 18% · Lv 14-16 +2 more

  4. Route 112

    Wild: Numel 75% · Lv 14-16, Machop 25% · Lv 14-16

    Trainers: Camper Larry Lv 18, Hiker Brice Lv 18, Hiker Trent Lv 16, Picnicker Carol Lv 18

  5. Route 113

    Wild: Spinda 70% · Lv 14-16, Sandshrew 25% · Lv 14-16, Skarmory 5% · Lv 16

    Trainers: Ninja Boy Lao Lv 19, Ninja Boy Lung Lv 19, Parasol Lady Madeline Lv 20, Twins Tori & Tia Lv 20, Youngster Dillon Lv 20, Youngster Neal Lv 20

  6. Route 114

    Wild: Barboach 100% · Lv 20-45, Geodude 100% · Lv 5-20, Marill 99% · Lv 5-35, Magikarp 70% · Lv 5-10 +9 more

    Trainers: Camper Shane Lv 19, Fisherman Claude Lv 18, Fisherman Nolan Lv 20, Hiker Lenny Lv 19, Hiker Lucas Lv 18, Kindler Bernie Lv 19 +3 more

    Pick up: TM05 Roar, TM28 Dig

  7. Lavaridge Town

    Wild: Wynaut Lv 5

    Pick up: TM50 Overheat

  8. Mt. Chimney

    Trainers: Aqua Admin Matt Lv 20, Beauty Melissa Lv 22, Beauty Sheila Lv 22, Beauty Shirley Lv 22, Expert Shelby Lv 22, Magma Admin Tabitha Lv 20 +2 more

  9. Mauville City Gym

    Trainers:Wattson Lv 23, Battle Girl Vivian Lv 19, Guitarist Kirk Lv 18, Guitarist Shawn Lv 17, Youngster Ben Lv 19

★ Wattson — Mauville City Gym

3 Pokémon · level cap Lv 23 (every cap) · Wattson’s own page

PokémonMoves
MagnemiteMagnemite
Lv 22
Thunder Shock Supersonic Sonic Boom Thunder Wave
VoltorbVoltorb
Lv 20
Charge Tackle Screech Sonic Boom
MagnetonMagneton
Lv 23
Thunder Shock Supersonic Sonic Boom Thunder Wave

Everything you can have caught by this checkpoint · Open the interactive guide

This game's documentation doesn't say where 15 of its 396 fights happen, so those trainers are on no part of this walkthrough; they are all on the Trainers page. It also doesn't say when 4 of its areas open up, so they are listed together in the last part rather than guessed into the story.