There are a few more elements to fishing. In each area, you will sometimes see the fishing spot bubble. If you approach this spot, you can fish in it and you'll get a different encounter table, typically making the rarer Pokémon such as Dratini, Corsola or Feebas be more common. However, if you move too fast around it, the area will disipate and will require you to re-enter the route to access it

Items are also a thing that can be hooked when fishing. When you get something on your hook, there is slim chance that you instead hook an item such as Pearls, Pearl Strings or even Bottle Caps.

The following locations can be fished in: Route 7, Route 8, Route 9, Route 13, Route 14, Route 15, Akala Outskirts, Brooklet Hill, Kala'e Bay, Melemele Sea, Paniola Town, Poni Breaker Coast, Poni Gauntlet, Poni Meadow, Seafolk Village, Seaward Cave, Vast Poni Canyon