Part 11: Champion Wallace, and the cap comes off
Beating the Champion lifts the cap altogether. What is left is the Battle Frontier and Artisan Cave, Trainer Hill, the islands — Southern, Birth, Faraway and Navel Rock — the three sealed chambers, and the caves the weather opens.
Champion Wallace, and the cap comes off opens 13 areas. There is 1 trainer standing in them.
Where to go
Ancient Tomb
Wild: Tapu Koko Lv 40
Artisan Cave
Wild: Smeargle 100% · Lv 40-50
Pick up: TM02 Bullet Seed, TM08 Blaze Kick, TM22 Zing Zap, TM23 Baton Pass, TM25 Endeavor, TM71 Lunge, TM72 Pollen Puff, TM88 Dark Pulse +2 more
Battle Frontier
Wild: Meowth (Galar), Sudowoodo Lv 40
Pick up: Assault Vest (shop), Bright Powder (shop), Calcium (shop), Carbos (shop), Choice Band (shop), Choice Specs (shop), Full Heal (shop), Full Restore (shop) +23 more
Move tutor: Body Slam, Counter, Defense Curl, Dream Eater, Endure, Fire Punch, Frost Breath, Ice Punch, Mega Kick, Mega Punch, Mud-Slap, Psych Up, Seismic Toss, Snore, Swift, Thunder Punch
Birth Island
Wild: Genesect Lv 30
Desert Ruins
Wild: Tapu Bulu Lv 40
Faraway Island
Wild: Marshadow Lv 30
Island Cave
Wild: Tapu Fini Lv 40
Marine Cave
Wild: Zekrom Lv 70
Misty Cairn
Wild: Tapu Lele Lv 40
Navel Rock
Wild: Cresselia Lv 45, Darkrai Lv 45
Pick up: Sacred Ash (hidden)
Southern Island
Terra Cave
Wild: Reshiram Lv 70
Meteor Falls - Steven's Cave
Trainers: Rival Steven Lv 78