You will also want to explore to see what other secrets this region has. The larger world that you have to explore keeps you on your toes and while you will be going out and looking for items and battles so that you can grind. This whole region feels like it is alive and there are very few places that are just empty space.
The Alola Region that you will be exploring is the richest and most fleshed out of any Pokémon game that I have played.