Walkthrough: Route 7 is a small area that will actually lead you to Wela Volcano Park, where your next Island Trial will take place. At first, this route might seem pretty empty. However, after obtaining the Lapras Poke Ride Pager from the man within the area, you can access all the trainers found within the waters to the east.
Island Scan Pokemon:
Spheal
Wild Pokemon:
Surfing (Levels 16-19): Finneon(30%), Tentacool(30%), Pyukumuku(20%), Wingull(20%)
Fishing (Levels 10-18): Magikarp(55%), Wishiwashi(40%), Staryu(5%)
Fishing SOS Pokemon #1 (Levels 10-18): Gyarados, Wishiwashi, Starmie
Fishing SOS Pokemon #2 (Levels 10-18): Gyarados, Wishiwashi, Staryu
Fishing SOS Pokemon #3 (Levels 10-18): Magikarp, Wishiwashi, Staryu
Fishing Bubble Spots (Levels 10-23): Magikarp(45%), Staryu (35%), Wishiwashi(20%)
Bubble Spots SOS Pokemon #1 (Levels 10-23): Gyarados, Starmie, Wishiwashi
Bubble Spots SOS Pokemon #2 (Levels 10-23): Gyarados, Staryu, Wishiwashi
Bubble Spots SOS Pokemon #3 (Levels 10-23): Magikarp, Staryu, Wishiwashi
Rustling Spots (Levels 16-19): Diglett(100%)
Trainers:
Swimmer Dakota - Level 18 Basculin, Level 18 Psyduck
Swimmer Tiare - Level 19 Alomomola
Swimmer Casey - Level 18 Surskit
Swimmer Vanessa - Level 18 Shellder
Items:
Max Repel - Northern Cliffside
Antidote - Underwater Near Swimmer Casey
TM32 - On Island
Net Ball (Hidden) - Southern Beach
Pearl (Hidden) - In Rock On Nothern Beach
Star Piece (Hidden) - In Rock On Northern Beach