Walkthrough: Just north of Seafolk Village, in hopes of finding Hapu and getting some help with finding the second flute to summon the Cover Legend, is Poni Wilds. This is a large area that has many trainers and wild Pokemon, and it leads straight into the Ancient Poni Path where Hapu's house is located.
Wild Pokemon:
Initial Pokemon - Daytime (Levels 40-43): Pelipper(30%), Gumshoos(30%), Granbull(20%), Exeggutor(10%), Gastrodon(10%)
Initial Pokemon - Nighttime (Levels 40-43): Pelipper(30%), Raticate(30%), Granbull(20%), Exeggutor(10%), Gastrodon(10%)
Catching Wimpod (Levels 40-43): Wimpod(100%)
Berry Trees (Levels 40-43): Crabrawler(100%)
Surfing (Levels 40-43): Tentacruel(30%), Lumineon(25%), Pelipper(20%), Gastrodon(20%), Lapras(5%)
Surfing SOS Pokemon #1 (Levels 40-43): Lumineon, Pelipper, Gastrodon, Tentacruel, Lapras
Surfing Special Spots (Levels 40-43): Wailmr(90%), Wailord(10%)
Fishing (Levels 10-43): Magikarp(79%), Wailmer(20%), Relicanth(1%)
Fishing SOS Pokemon #1 (Levels 10-43): Gyarados, Wailord, Relicanth
Fishing SOS Pokemon #2 (Levels 10-43): Magikarp, Wailmer, Relicanth
Fishing Bubble Spots (Levels 10-43): Magikarp(50%), Wailmer(40%), Relicanth(10%)
Fishing Bubble Spots SOS Pokemon #1 (Levels 10-43): Gyarados, Wailord, Relicanth
Trainers:
Ace Trainer Kekoa - Level 44 Sharmory, Level 45 Sharpedo
Dancer Cara - Level 43 Oricorio
Ace Trainer Lindsey - Level 44 Garbodor, Level 45 Toxapex
Cook Fil - Level 43 Parasect, Level 43 Ribombee
Dancer Julia - Level 43 Oricorio, Level 43 Oricorio, Level 43 Oricorio, Level 43 Oricorio
Zygarde Cells: There are three Zygarde Cells found scattered in Poni Wilds.
Items:
Max Repel - On Beach
Dusk Stone - Under Sea near Fishing Hole
Pearl String - Under Sea near Fishing Hole
Salac Berry - Northwest Berry Tree
Chople Berry - Northwest Berry Tree
Chilan Berry - Northwest Berry Tree
Colbur Berry - Northwest Berry Tree
Shuca Berry - Northwest Berry Tree
Charti Berry - Northwest Berry Tree
Occa Berry - Northwest Berry Tree
Rare Candy - Right of Northwest Berry Tree
Petaya Berry - North Berry Tree
Yache Berry - North Berry Tree
Passho Berry - North Berry Tree
Wacan Berry - North Berry Tree
Roseli Berry - North Berry Tree
Babiri Berry - North Berry Tree
Payapa Berry - North Berry Tree
Max Potion - Northeast Poni Wilds
Haban Berry - Northeast Berry Tree
Coba Berry - Northeast Berry Tree
Rindo Berry - Northeast Berry Tree
Kasib Berry - Northeast Berry Tree
Kebia Berry - Northeast Berry Tree
Tanga Berry - Northeast Berry Tree
Liechi Berry - Northeast Berry Tree
Focus Sash - Defeat Dancer Julia
Pearl - Above Dancer on Beach (Hidden)
Big Pearl - Behind Ramp on Beach (Hidden)
Repeat Ball - Northwest of Dancer Julia (Hidden)