Wrong game dude. You're thinking of crystal, gold and silver.
Raikou is a legendary dog Pokemon. It is not in any specific location in Pokemon Fire Red. Instead, you can find it roaming Sinnoh.
Since it is a wandering pokemon, there is no definite place to find it. By the way, I believe it is Where IS Raikou in Fire Red.
You can only get raikou for Pokemon diamond and pearl through fire red and leaf green. You find raikou in the wild after defeating the elite four and choosing squirtle as your starter.
Raikou is not available in Pokemon Red as it was introduced in Gold and Silver.
it roams but u can only find entei in fire red.
You don't find Raikou in a city, you can find it anywhere. What I mean is that Raikou can only be found if you chose squirtle as your starter and it can show up anywhere. It is all random luck. Check out SEREBII.NET for ALL types of hints for all Pokemon games.
You can't find raikou in ruby.
the three islands
You go to a mountain and catch raikou
Raikou is only found in firered and leafgreen if you chose squirtle as your starter Pokemon. Or you can get the purified raikou from Pokemon colosseum.
you can find them in Pokemon leaf green /fire red after you beat the elite 4 and the champion Charmander - Suicune Squirtle - Raikou Bulbasaur - Entei how do you find them?
In the wild.