Instructions
Travel to the Attohwa Chasm. This is the mountainous desert area in the Aragoneu region. Attohwa Chasm is also where the "One Good Deed?" and "Tea with Tonberry" quests take place.
Go to the northeast region of the Attohwa Chasm to find a point called Loose Sand. It is near the center of the square marked K-8 on the Attohwa Chasm map. Use this coordinate as a point of reference and walk through the area to get there.
Walk around near the Loose Sand and explore the area around it to make the Lioumere burst from the ground.