near mauvilee city after you get all badges and talk to a guy in the weather place near fortree city.

near mauvilee city after you get all badges and talk to a guy in the weather place near fortree city.

near mauvilee city after you get all badges and talk to a guy in the weather place near fortree city.

near mauvilee city after you get all badges and talk to a guy in the weather place near fortree city.

near mauvilee city after you get all badges and talk to a guy in the weather place near fortree city.

near mauvilee city after you get all badges and talk to a guy in the weather place near fortree city.

near mauvilee city after you get all badges and talk to a guy in the weather place near fortree city.

near mauvilee city after you get all badges and talk to a guy in the weather place near fortree city.

near mauvilee after you have all badges

near mauvilee after you have all badges

near mauvilee after you have all badges

near mauvilee after you have all badges

near mauvilee after you have all badges

near mauvilee after you have all badges

near mauvilee after you have all badges

near mauvilee after you have all badges

near mauvilee after you have all badges

near mauvilee after you have all badges

near mauvilee after you have all badges

near mauvilee after you have all badges

near mauvilee after you have all badges

near mauvilee after you have all badges

near mauvilee after you have all badges

near mauvilee after you have all badges

near mauvilee after you have all badges

near mauvilee after you have all badges

go to the guy upstairs in the weather forcast and he'll tell you which root he's on and you go there and find a cave the same with Kyogre

in Maville city.

you have to go to the weather control station and talk to the man in the other room but you have to catch kioger first

First ---> Beat Elite Four ----> Weather Place -----> He'll say something about a drought/heavy rain ------> Terra Cave, Route 118, route 116, Route 115, and Route 114.
Serebii.com, I think tells you wear the Terra Caves are.
2 possible locations for every route.
I hope that answers your question.