Sleeping Volcano is a dungeon/quest that appears in Wild Arms 2. t can be accessed after defeating Grauswein in the events at Valeria Chateau in the game's main story.
Wild Arms 2[]
Fly around in the Chateau and watch the radar to locate the green dot telling you where it is. You can only reach it via Live Reflector, as it's on the same land mass as the Raline Observatory. Take the reflector from Sylvaland, Holst,or Meria Boule region, choosing the Dragon's Vein teleport. From there, head North up a narrow trail that leads to a large, dark mountain/volcano. Search along the mountain wall to locate the entrance.
Walktrough[]
The path is windy and has dead ends, so stay oriented. Head North and take the East branch, jumping down, and keep heading roughly North. In the next room, the sign reads 'Flammable gas', so flame it with Lilka's rod. Head into the volcano.You can use the Rad Blades to cross the hot zone. As soon as you do, skate North along the hot trail to reach an arms chest for Brad, which he has to kick open.Skate back, and you have two paths to choose from: leave from the Weast wall, or the S end of the hot road. Taking the E door first, fire the gas spout on the ground, then return to the previous room and head to the South exit. Head to the second teardrop-shaped mound with a chest on it, then to the N wall and exit there. Save if you want to at the Amazing Stone, and head down the East path along the wall and exit at the South end. There are a couple of exits from this room. Head North up the middle, skating just Weast of the healing crystals on the ground, to go up a ramp and over a bridge. Exit up top here on the East side to reach an overlook, from where you have to flame a gas spout, then return. Jump down, then exit along the South end of this room. Follow the path Weast and North, then jump to the doorway in the N wall.
Follow the path roughly northward, going under some rock rings, and getting 2 chests along the way (the second is just South of the exit). In the NE corner, you can return to that central room that had multiple gas spouts. Shoot the last one and cross the path you made for yourself to reach a stone monolith that says the power of destruction is needed. Bombs! Bomb the stone and fire the spout that appears, then head into the center of the volcano to confront Lombardia.