Walkthrough: Just north of Route 7 is Dividing Peak Tunnel, a path that was previously an unseen gate in Pokemon Sun & Moon. Within this tunnel, you can only find a few species of Pokemon. At the end of the tunnel, you will once again run into the Ultra Recon Squad, this time with them telling you they have a meeting with an individual on Route 8 that should help them prevent the Blinding One from breaking their control.
Wild Pokemon:
Rustling Spots (Levels 17-20): Kecleon(100%)
Chasing Wimpod (Levels 17-20): Wimpod(100%)