Pokemon emerald

Legendary pokemon:

Rayquaza-At a tower

Kyogre-at a cave that moves after elite4

groundon-at a cave that moves after elite4

Latias/Latios-one will be fling through Hoen the other will be at southern island

Regirock-In a cave

Regice-in a cave

Registeel-in a cave

Mew-Southern island

Ho ho-At an island

lugia-same island as Ho-Ho