explore a bridge in kanto
you do ecruteack city
Fishing in Vermillion with a Super Rod.
if its on pokemon soul silver, just use your super rod in violet city.
if ur talking about the old rod then go in the pokemon center on route 32(south of violet city) and talk to someone( i forget who.probably a fisherman dude wearing orange)
Talk to the fisherman NPC in the Pokemon center near the entrance to Union Cave.
you will find it in a house somewhere
In the golden rod tunnel
explore a bridge in kanto
When you are on your way to Azealea Town, a Pokemon center is on the route there. Go inside and talk to the fisherman and say yes and you'll get the old rod.
you do ecruteack city
Fishing in Vermillion with a Super Rod.
Mostly safari zone
if its on pokemon soul silver, just use your super rod in violet city.
if ur talking about the old rod then go in the pokemon center on route 32(south of violet city) and talk to someone( i forget who.probably a fisherman dude wearing orange)
by breeding shiny gyrados, only game it works in is pokemon soul silver or just waste your time in any old pokemon game using an old rod in the ocean dumbo
yes you can cath more than a magicarp with the old rod but the only other thing you can catch with it is a feebas you can also on Pokemon heart gold ( don't know about soul silver) catch a polywag ^^