After you have caught giritina you go back to valor lake (i think) and the blackout is gone and you can go through.
Hope i helped !
you can get there by going to MT. Cornet and defeating cerus. hope this helped !
Between Sunyshore City and Route 223.
You cant
by hearthome city it is only in pokemon heartgold and platnum
victory road north of sunyshore city but you have to have the sunyshore gym badge to get there
to get to sunyshore city you need to go to the spear pillar hope I helped
the first gym is at orebough city
It is sunny in Sunyshore City.
The Underground or Sunyshore City
It is in Sunyshore City.
The Underground, and Sunyshore City
In sunyshore city. I don't no where in sunyshore.