In Hearthrome.
No. Cobalion is a fifth generation Pokemon. Diamond Version is a fourth generation game.
The fifth one in Hearthome City.
use dark types u retards!!!!!!!!!!!!!!!!!!!!!!!!!! if you could get palkia or dialga
It doesn't exist in Pokemon Pearl as it was introduced in fifth gen
The fifth gym in Pokemon white uses the ground type.
maylene
You can't. Black and White are fifth generation games and Diamond and Pearl are fourth generation. However, once the National Dex has been obtained, you can transfer your Gen IV Pokemon to Gen V games.
The fifth gym is in Hearthome City - you have already been here.
were is the fifth gym leader
the fifth gym on Pokemon diamond is the one in herthome city,
Hearthome
hearthome city
Hearthome City.
Beat the gym leader
if you mean how to get there its in hearthome city
harthome city harthome
To the MOON!