You have to go to the Underground cavern in route 128.
Complete the mission.
It may take some time.
after you see groudon for the first time but only see it. i no this isn't very helpfull, but ask the question "How do i catch groudon in Pokemon ruby" or ask "Where and how to catch groudon in Pokemon ruby"
Groudon is not available in Sapphire. You have to trade it from Pokemon Ruby, and there is only one Groudon in the whole Ruby game.you cannot catch groudon in sapphire, but you can have it by transfering it from Pokemon ruby or from Pokemon emeraldyou cannot catch groudon in sapphire, but you can have it by transfering it from Pokemon ruby or from Pokemon emerald
first go to the cave of origin in sootopolis, and go to the end, you will see groudon there
You can get a Groudon by trading it from either Pokemon Ruby or Pokemon Emerald.
Groudon
Kill him?!
Inside, the cave of origins, where you will see groudon.
Groudon
You can't. You can only catch groudon in pokemon ruby.
groudon,kyogre and rayquaza groudon,kyogre and rayquaza
you can only get groudon on Pokemon ruby.
Apparently Groudon, but you need to trade with ruby to be able to obtain him.