Part 7: Beat Skyla — Mistralton City Gym, badge 6

Beat Skyla — Mistralton City Gym, badge 6 opens 9 areas.

Where to go

1. Undella Bay

   Wild: Frillish 65% · Lv 25-40, Chinchou 60% · Lv 40-70, Jellicent 60% · Lv 25-40, Wailmer 60% · Lv 25-40 +9 more

2. Reversal Mountain

   Wild: Audino 100% · Lv 31-34, Excadrill 100% · Lv 32-35, Woobat 35% · Lv 32-35, Camerupt 30% · Lv 35-37 +10 more

3. Strange House

   Wild: Litwick 30% · Lv 31-33, Gothita 20% · Lv 31, Solosis 20% · Lv 31, Banette 15% · Lv 32-34 +4 more

4. Village Bridge

   Wild: Audino 75% · Lv 36-39, Basculin 70% · Lv 25-40, Carvanha 60% · Lv 40-70, Marill 60% · Lv 25-40 +8 more

5. Route 9

   Wild: Audino 80% · Lv 37-40, Minccino 30% · Lv 37-39, Duosion 25% · Lv 37-39, Gothorita 25% · Lv 37-39 +9 more

6. Route 11

   Wild: Audino 80% · Lv 36-39, Basculin 70% · Lv 25-40, Buizel 60% · Lv 25-40, Goldeen 60% · Lv 40-60 +14 more

7. Route 12

   Wild: Audino 60% · Lv 35-37, Roselia 25% · Lv 35-37, Tranquill 25% · Lv 36-38, Combee 20% · Lv 35 +9 more

8. Route 13

   Wild: Audino 85% · Lv 34-37, Frillish 65% · Lv 25-40, Luvdisc 60% · Lv 40-70, Staryu 60% · Lv 25-40 +18 more

9. Undella Town

   Wild: Frillish 65% · Lv 25-40, Luvdisc 60% · Lv 40-70, Staryu 60% · Lv 25-40, Shellder 55% · Lv 40-70 +4 more

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

It also doesn't say when 5 of its areas open up, so they are listed together in the last part rather than guessed into the story.