I think it is left of Pastoria City. A fisherman has it. Talk to him and he will ask you if you like great rods. Say yes and he will give you one.
you can find it on route 220 using the super rod
Canalave City use good rod.
You have to use the Super Rod on Route 226.
You can find it by using a Super Rod on Iron Island.
I don't think there is one. But I do know this! POKEMON DIAMOND AND PEARL- ULTRA ROD IN FRONT ON ENTRANCE TO ROUTE 255 POKEMON PLATINUM- OLD ROD GAVE TO BY CYNTHIA'S GRANDMOTHER POKEMON BLUE RED AND YELLOW- NO ROD FOUND YET
you cant freakin get one
left of pastoria city
At route 209 from a fisherman.
On Pokemon Platinum, Carvanha can be caught in the Great Marsh.PLEASE NOTE: REQUIRES SUPER ROD.
route 218 (good rod)
Use a super rod.
There is no great rod.
you can find it on route 220 using the super rod
The Pokemon Platinum guide book says you get it at Pastoria City with a super rod hope i helped
Pastoria City and Pokemon League, use super rod
in the safari zone, use the super rod
route 223 - 230 super rod