buy it from the bike shop
A Good Rod is available within Roue 209 in Diamond and Pearl.
In Pokemon Pearl, the Good Rod is given to the player by a fisherman on Route 209. he will ask the player a question and if they answer 'yes' then he will hand over the Good Rod.
Almost anywhere using a good rod
Fishing with the Good Rod at Eterna City.
Route 222
By fishing. The Pokemon is Lumineon it can be caught with a Good or Super Rod.
I THINK you should fish with a good rod or a super rod on the beach in Sandgem Town...
To acquire the Good Rod in Pokémon Diamond, Pearl, and/or Platinum, simply travel to Route 209 and you will meet a fisherman who will give you the Good Rod.
No, try the good rod.
By surfing or using a fishing rod
a super rod is the best rod in Pokemon pearl/dimond/platnim
On route 209 there will be a fisherman on the dock. Talk to him and he'll give you the good rod.