How do you get to fifth gym leader in Pokemon emerald version?

Answer 1

You go to Petalburg City then go to the gym and go through four or five doors then you will face the fifth gym leader.

That's the fourth gym leader, fifth badge. If you want the fifth gym leader, sixth badge go to route 118 use surf and go to your left, go up when your stopped by steven and then keep going up.

once you see a big building you can either:

Go in and get a castform for betting team magma/aqua

or

Make a right until you get to fortree city.

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Resources:

I've played the game.