Location of the seabed cave in Hoenn. The Seafloor Cavern (Japanese: 海底洞窟 Seabed Cavern) is a location in Hoenn, deep under the water of Route 128. After emerging from the cave, there is a tunnel labyrinth to the deepest part where the ancient Pokémon lives.
To get there, head west from Mossdeep City, then south to Route 126 and dive there to find the cave entrance in the south underwater area.
The Seabed Cave is a hidden area in southeast Hoenn. It can only be reached by diving into an underwater trench on Route 128. The entrance is in the southern part of the moat. Dive back up to reach the cave entrance.
Surf into the next room, hop in the currents until you can reach the upper left door. Go through it and solve the puzzle in the next room. In the next room, just follow the path and face off against Archie. After defeating him, Archie will use the Red Orb to wake Kyogre and he will escape as well.
Team Aqua Hideout is a location in Hoenn, near Lilycove City. It is the base of operations for the criminal organization Team Aqua in Pokémon Sapphire and Pokémon Emerald.
All items on Route 128 can only be reached with Surf, except for the Heart Scales on the island with the route sign in Omega Ruby and Alpha Sapphire, which can be accessed with Fly (after visiting Ever Grande City). or rise.
After the leader of Team Magma/Aqua resurrects Groudon/Kyogre, enter Route 126 to Sootopolis City, home of the Origin Cave.
Kyogre is a legendary Water-type Pokémon. Along with Groudon and Rayquaza, Kyogre is part of the weather trio. Kyogre possesses the ability to expand oceans. You can catch Kyogre in Emerald after winning the main game.
If you bring the Magma Emblem to where those Grunts were before, it will tremble and a cave will open. Follow the path around, up the stairs and into the cave. Work your way through all of the Magma Grunts until you reach Maxie. Maxie uses the blue orb to wake up Groudon and he flees.
New to Emerald is the availability of Rayquaza ahead of the Elite Four. Once you’ve summoned Rayquaza to Sootopolis City, head to Pacifidlog Town and surf east. Follow the northern border until you find a spot where you can go past some rocks and back.
You need a Wailord at the front of your party and a Relicanth at the back.
You can get Rayquaza either before or after the Elite 4, the choice is yours.