The 8th gym is in Sunyshore, but you will be unable to go there until after you beat Cyrus on Mt. Coronet.
There is a map of Mt. Coronet in the Sinnoh region.
Mt coronet is only in diamond or pearl or platinum not in firered.
You have to go to the top of mt conoret, where you'll have a battle with your rival against commander Mars and Jupiter. After that you'll go to the distortion world where you have to beat Cyrus and fight Gratina. Once all that is completed, team Galactic will be gone from mt Coronet. To find Cyrus and the top of mt Coronet: http://www.mahalo.com/Pokemon-platinum-walkthrough-part-6/
you can find Cyrus at the entrance to Mt.Cornet near oreburg city and at the top of Mt.Cornet wich is called Spear Pillar.
He's in the Galactic Veilstone Building, and on top of Mt. Coronet. But not after he leaves Mt. Coronet.
At the peak of Mt. Coronet.
You can find it in Mt. Coronet (B1F)
Yes you can. You fight him right before you fight Dialga at the top of Mt. Coronet.
On top of Mt. Coronet.
you find the move surf somewhere near mt coronet. i dont know where but it DEFINETLY near mt coronet you find the move surf somewhere near mt coronet. i dont know where but it DEFINETLY near mt coronet
hes right in front of palkia
You must have defeated Cyrus at Mt. Coronet and battled Dialga.
After releasing the three Pokemon of the lakes, Cyrus goes to the top of Mt. Coronet
The 8th gym is in Sunyshore, but you will be unable to go there until after you beat Cyrus on Mt. Coronet.
spear pillar
Top of Mt Coronet? It's all in what he's said.