Walkthrough: Connected to the Ancient Poni Path is the Poni Breaker Coast, a small coastal beach that has since been eroded by strong waves and geysers. You must follow the path to reach both Lillie and Hapu, who are just outside the Ruins of Hope. As Hapu waits for Tapu Fini to choose the next Kahuna, she suggests you and Lillie head to Exeggutor Island, an old Trial Site, to find the second flute. This island can be accessed by talking to the chief of Seafolk Village.
Wild Pokemon:
Catching Wimpod (Levels 40-43): Wimpod(100%)
Fishing (Levels 10-43): Magikarp(79%), Wailmer(20%), Sharpedo(1%)
Fishing SOS Pokemon #1 (Levels 10-43): Gyarados, Wailord, Sharpedo
Fishing SOS Pokemon #2 (Levels 10-43): Magikarp, Wailmer, Sharpedo
Fishing Bubble Spots (Levels 10-43): Magikarp(50%), Wailmer(40%), Sharpedo(10%)
Fishing Bubble Spots SOS Pokemon #1 (Levels 10-43): Gyarados, Wailord, Sharpedo
Trainers:
Sightseer Jamie - Level 43 Sandshrew, Level 43 Geodude, Level 43 Vulpix, Level 43 Graveler
Swimmer Kylie - Level 45 Lumineon
Swimmer Ashlyn - Level 45 Lanturn
Zygarde Cells: There are two Zygarde Cells found scattered across the Breaker Coast.
Items:
TM94 Surf - Defeat Swimmer Kylie
TM94 Waterfall - Defeat Swimmer Ashlyn