(After beating League)Go to route 104 and surf forward.There you will see a diving patch.Dive and you will see a cave,go in it.You will see the Legendary Kyogre.(Can be catched with Pokeball)
Here is advice: Pokemon emerald on routes 105 127 129 103 You find out where it is when you beat the elite four and go to the weather institute and talk to the guy who gives you castform after you...
Found out where it is by talking to the man who gave you a Castform. If he says there is heavy rain, that is where it is...
...good luck! :D
Just dont take to long to find Kyogre's lair or the...
Basically every hoenn Pokemon along with the inclusion of a few jhoto and kanto Pokemon. Hoenn Pokemon NOT found in emerald are: Surskit, Masquerain, Meditite, Medicham, Roselia, Zangoose, and...