The first gym in Pokemon diamond is in Oreburgh City
go into oreburgh mine and talk to gym leader
The 6 gym leader in at Canalave City. the gym after the hearthome City gym!!!!!
Roark, a Rock-type specializing Gym Leader, can be found in Oreburgh City (just like in Diamond and Pearl).
After beating the third Gym Leader (Maylene the Veilstone Gym Leader) in Pokémon Diamond, you then head to Pastoria City to battle the Gym Leader there who is named Crasher Wake.
The first gym in Pokemon diamond is in Oreburgh City
go into oreburgh mine and talk to gym leader
orebourgh city
He is the first Gym Leader you meet and he is in Oreburg City, through the passage east of Jubilife.
Beat the first gym leader: Roark.
jubilife city i think
You have to beat(or Catch) Dialga first.
in the mines to the south of the city
The 6 gym leader in at Canalave City. the gym after the hearthome City gym!!!!!
gotta beat the other gym leaders first and them come back to fight her
The 6th gym leader is in Canalave City.
train your Pokemon to about lv 20