After arriving on Akala Island, you make your way through Route 4 on your way to Paniola Town.
If you go upward through the grass, you battle Bellhop Jody, who has a level 14 Drifloon. You get 560 Pokédollars for winning.
If you take the lower path through the grass, you find a Great Ball.
Go upward, then to the right and check on the rock at the end to get a Tiny Mushroom.
Then go to the left and go up the ramp. Check on the sparkle below to get another creature for the Zygarde Cube.
Go the left to battle Collector Bryan. He has a level 13 Munchlax and a level 14 Bagon. You get 448 Pokédollars for winning.
Afterward, check behind Bryan to get a Revive.
Go back through the grass, then go upward up the ramp. You can battle Sightseer Scotty up above. He has a level 14 Rattata. His Rattata is not the usual Alola form, so this form will be added to your Pokédex with this battle. You get 840 Pokédollars for winning.
After that, go downward past the rock and go down the one-way ledge to find an Adrenaline Orb.
Then go upward through the grass, then to the right to go down the ramp. Go through the grass and you can battle Cook Ernie. He has a level 14 Cutiefly. You get 560 Pokédollars for winning.
If you go to the right, then down through the grass, you find an Energy Root.
Go back up through the grass, then go to the right and check on the berries. A pokémon may attack.
After that, go upward to reach Paniola Town.