you find it underwater
no you do not have to catch a relicanth to get a rayquaza
You can catch it when you use dive.
To catch relicanth use Hypnosis by Gengar and get lots of Dive Balls
You can't catch Relicanth. You have to trade from Ruby, Emerald, Sapphire or any other game that has him captured.
No only in ruby and sapphire and emerald.
underwater routes 124-126,but rare.
Underwater near sootopolis city its rare though.
in a dive area near sootopolis city peace :)
in fire red yes in emerald no
erwater cavern surrounding sootopolis city
You can see and catch Relicanth under the water just outside Sootopilis(spl?) City, in the mossy grass.
relicanth