Pokémon Ruby and Sapphire/Route 118

Route 118 leads to the water, where you'll have to surf in order to get to your next destination. But you'll have to battle through some trainers.

Trainers
Surf across to the opposite beach. When you get there, speak to the fisherman on the east shore. Say "yes" to his question to get the Good Rod.


 * Interviewers Gabby & Ty

Again, they'll want an interview.


 * Fisherman Barny

Go north and you'll be greeted by Steven. He tells you to raise Pokémon of many different types. When he leaves, cut the nearby tree to get to Sitrus Berries. Then move east.


 * Bird Keeper Perry
 * Bird Keeper Chester
 * Bird Keeper Chester

Grab the Hyper Potion to the east, then go back and go north up to Route 119.