You can trade it from heart gold/ soul silver or get lucky and find a shiny magicarp (golden/yellow) and evolve it into shiny gyarados (red gyarados)
Easy! Just trade the red gyarados from soulsilver to diamond.
your a fag
use a super rod
It's also possible to catch it. Beat it the same way as a normal Garados..
It is at the Lake of Rage in the middle of the lake. You will have to surf to catch it.
a shiny magi karp will
It is red because it is shiny and its only luck to find one
i will trade shiny garados for ryquaza at 3:00 u.s.a my name ash fc 5198 4590 6757
You get the red shard from the red garados if you fail to catch it at the lakeof rage.
a red gyrandos is a shiny Pokemon and it lives with other gyrandos-in water
You get him at the LAKE OF RAGE north of maghony town.
its just a rare Pokemon also its gyarados