Latiasite / Latiosite
Location (Latiasite) Alpha Sapphire: Southern Island – Item from the Latias that joins your party during the main story.

Omega Ruby: Littleroot Town – Gift from your Mother after the Delta Episode

Location (Latiosite) Alpha Sapphire: Littleroot Town – Gift from your Mother after the Delta Episode

Omega Ruby: Southern Island – Item from the Latios that joins your party during the main story.

Use On Latias (Latiasite)
Latios (Latiosite)
Mega Evolution Mega Latias (Latiasite)
Mega Latios (Latiosite)

You will obtain the Latiasite (Alpha Sapphire) or the Latiosite (Omega Ruby) from Steven on Southern Island. This event is part of the main story, which makes the Mega Stone for Latias or Latios unmissable.

Prerequisites

  • Beat the Petalburg Gym
  • Obtain HM03 Surf

Latiasite/Latiosite Location

After you beat the Petalburg Gym, Wally will automatically take you back to Mauville City. After that event, take the city’s eastern exit to leave Mauville and you will arrive on Route 118.

From that point, here’s how to get your Latias/Latios Mega Stone:

Step 1: Head east from Route 118’s entrance.

Heading east from Route 118’s entrance
Heading east from Route 118’s entrance.

Step 2: Continue heading east past the Aroma Lady trainer. Wait for her to face the opposite direction if you want to avoid the battle.

Heading east on Route 118 and past the Aroma Lady
Heading east on Route 118 and past the Aroma Lady.

Step 3: Keep going east until you arrive at the beach.

Arriving at the beach on Route 118
Arriving at the beach on Route 118.

Step 4: Continue east towards the shore and use Surf on the water.

Using Surf on Route 118
Using Surf on Route 118.

Step 5: On the water, keep surfing east until you reach the shore on the other side.

Surfing towards the east side of Route 118
Surfing towards the east side of Route 118.

Step 6: Once you disembark, head southeast on the beach and then continue towards the eastern side.

Heading to the southeast of the beach on Route 118
Heading to the southeast of the beach on Route 118.

Step 7: Keep heading east until you reach the end of the beach. Then turn north and head to the area of grass above the beach.

Reaching the end of the beach and heading to the grassy patch
Reaching the end of the beach and heading to the grassy patch.

Step 8: You will immediately run into Steven, starting a short dialogue.

The game proceeds automatically from this point.

Talking to Steven on Route 118
Talking to Steven on Route 118.

Step 9: Latios (AS)/Latias (OR) will then appear and a cutscene will play.

Latias appearing on Route 118
Latias appearing on Route 118.

Step 10: After the cutscene ends, you will arrive on Southern Island.

From here, head to the north part of the island, up the hill.

Walking to the north part of the island
Walking to the north part of the island.

Step 11: Continue into the clearing on the north part of the island.

Heading into the clearing on Southern Island
Heading into the clearing on Southern Island.

Step 12: Keep going north and you will find Latias (AS) or Latios (OR) at the end of the clearing.

Once you reach the Pokémon, the game will proceed automatically with another cutscene.

Latios waiting at the end of the clearing on Route 118
Latios waiting at the end of the clearing on Route 118.

Step 13: An evil team Admin will show up with a grunt and challenge you to a doubles battle. Steven will join as your partner with a level 35 Metang.

Battling the evil team’s duo on Southern Island
Battling the evil team’s duo on Southern Island.

Step 14: After the battle, Latias/Latios will join your party.

Latias and Latios will also have their respective Mega Stone equipped automatically. So this is when you’ll get your Latiasite or Latiosite.

Latios carrying a Latiosite and joining the player’s party
Latios carrying a Latiosite and joining the player’s party.
Latiosite’s item description
Latiosite’s item description.
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