Walkthrough: After defeating your second Island Trial, you can then hang back in Brooklet Hill and try your best at finding the number of different Wild Pokemon found throughout, as well as any items you may have missed.
Wild Pokemon:
Grasses - Daytime (Levels 14-17): Psyduck(30%), Paras(20%), Lillipup(20%), Wingull(10%), Poliwag(10%), Dewpider(10%)
Grasses - Nighttime (Levels 14-17): Psyduck(30%), Morelull(20%), Lillipup(20%), Wingull(10%), Poliwag(10%), Surskit(10%)
Surfing - Daytime (Levels 14-17): Dewpider(40%), Poliwag(40%), Psyduck(20%)
Surfing - Nighttime (Levels 14-17): Surskit(40%), Poliwag(40%), Psyduck(20%)
Grasses - Daytime (Levels 14-17): Wingull(30%), Psyduck(30%), Poliwag(20%), Dewpider(20%)
Grasses - Nighttime (Levels 14-17): Wingull(30%), Psyduck(30%), Poliwag(20%), Surskit(20%)
Surfing - Daytime (Levels 14-17): Dewpider(40%), Poliwag(40%), Psyduck(20%)
Surfing - Nighttime (Levels 14-17): Surskit(40%), Poliwag(40%), Psyduck(20%)
Fishing (Levels 10-15): Magikarp(70%), Goldeen(29%), Feebas(1%)
SOS Pokemon #1 (Levels 10-15): Gyarados, Seaking, Feebas
SOS Pokemon #2 (Levels 10-15): Magikarp, Goldeen, Feebas
Fishing Bubble Spots (Levels 10-15): Magikarp(50%), Goldeen(45%), Feebas(5%)
SOS Pokemon #1 (Levels 10-15): Gyarados, Seaking, Feebas
Surfing (Levels 14-17): Finneon(40%), Tentacool(40%), Wingull(20%)
Fishing (Levels 10-15): Magikarp(79%), Wishiwashi(20%), Alomomola(1%)
SOS Pokemon #1 (Levels 10-15): Gyarados, Wishiwashi, Alomomola
SOS Pokemon #2 (Levels 10-15): Magikarp, Wishiwashi, Alomomola
Fishing Bubble Spots (Levels 10-15): Magikarp(50%), Wishwashi(30%), Alomomola(20%)
SOS Pokemon #1 (Levels 10-15): Gyarados, Wishiwashi, Alomomola
Zygarde Cells: There are no Zyarde Cells found here.
Trainers:
Fisherman Ernest - Level 16 Barboach, Level 17 Goldeen
Backpacker Mikiko - Level 17 Fletchling
Fisherman Herbert - Level 17 Poliwag
Fisherman Carl - Level 16 Magikarp, Level 17 Magikarp
Fisherman Hal - Level 17 Tentacool
Items:
Net Ball - West of Fisherman Near River
X Sp.Atk - Near Backpacker Mikiko
Revive - Southwest Area
TM55 Scald - Southeast Second Lake
Rare Candy - Near Fisherman By Bridge
Elixir - Patch of Grass Near Entrance (Hidden)
Max Repel - Between The Two Patches of Grass (Hidden)
Fishing Rod (Totem's Den) - From Captain Lana After Trial
Dive Ball x10 (Totem's Den) - From Captain Lana After Trial
Hyper Potion (Totem's Den) - Southwest of Gate