In Pokémon HeartGold, Embedded Tower can be found by heading to Cianwood City in the Johto region and then going into the cave entrance that can be found to the Northwest of the Cianwood City Gym and then you can go through the cave until you exit it and continue the path until you see a Hiker, you will need to go by him however you will see a cave entrance to the right hand side of a giant waterfall and that cave entrance is the Cliff Cave and then you'll need to go down the ladder and exit the cave and then you'll need a Pokémon that has Surf because you'll need to surf west until you come to the second piece of land at which point you can get onto the land and you can use your Pokémon that knows Rock Climb to climb the wall twice and then you will come across another cave entrance and that cave entrance is the Embedded Tower.
Embedded Tower.
Kyogre is in Embedded Tower.
lugia-whirlwind island ho-oh-bell tower sucuine-route 25 entei and rakoi-roaming latios-roaming(soulsilver)or pewter city from dewdrop item(heartgold) latias-roaming(heartgold)or pewter city with the dewdrop item from the mystery event(soulsilver) groundon-embedded tower(soulsilver) kyroge-embedded tower(heartgold) rayquaza-embedded tower must have a groundon and kyroge If you have any other questions go to serebii.net
First you have to catch kyogre and trade groudon to heartgold then go to the embedded tower and there is rayquaza
Near Cianwood in the Embedded Tower.once you have the blue orb go to the embedded tower by the safari zone, kyogres in there.
in heartgold/soulsilver you go to the embedded tower after you get the jade orb
you can't you have to trade from soulsilver
Kyogre is located in The Embedded tower, or hidden tower.
You can catch it at Embedded Tower if you have a Blue Orb.
The Embedded Tower is on Route 47, between Cianwood City and the Safari Zone. It becomes unlocked if you have the Blue Orb.
Embedded Tower after catching both Kyogre and Groudon there.
you can only get it in soulsilver (and there it is at embedded tower and you need a red orb)