go pastoria city go to the great marsh talk to the galactic grunt right in front of it keep following him
hearthome city
Hearthome
Hearthome City.
The fifth one in Hearthome City.
The 8th Badge in Pokemon Diamond is called The Beacon Badge.
In Pokemon Red, the fifth badge is possessed by the Poison-Type Koga. The badge is named Soul Badge. It lets you use Surf outside of Battle.
The fifth gym is in Hearthome City - you have already been here.
to the canalave city by surf
== == == ==
Fuschia city.
Petalburg City.
In Diamond, Badge 5 can be gotten by defeating Fantina in her Gym in Hearthome City.