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
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.
route 223 - 230 super rod
in the safari zone, use the super rod