Bottom right of Eterna City
The Pokémon the second Gym Leader has in "Diamond" are Cherubi, Turtwig and Roserade.
eterna city
You can find the 2nd gym in the south part of Eterna City.
Eterna city at bottom right
The second gym leader in Eterna city
After you do the second to last gym it becomes available
Are you serious? Washroom!
The first gym in Pokemon diamond is in Oreburgh City
the fifth gym on Pokemon diamond is the one in herthome city,
eterna city gym leader gardenia she uses grass types
Use a fire pokemon. That's what grass is weak against.
i think the 2nd gym leader is in Jublife or Oreburgh city.