Use Strength to push the boulder to the gap and for you to reach TM40 Aerial Ace. Follow the path to the south then go to the right to find a trapped hiker. Talk to him to receive TM21 Frustration.
Push the boulder to create a path then head south to find another boulder. This should close the gap and make the both sides of the cave accessible. Backtrack a bit then go to the right. A trainer will challenge you in to battle.
Pokemon Breeder Mercy (Prize Money: P768)
With Route 7 connected conveniently, you may want to check your pokemon that you left in the Day Care Center battle some trainers in the Battle Chateau or even tend to your berry farm. When you’re ready, head back to Cyllage City and head north to Route 10.
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