The Lava Caves are a network of volcanic passages located on Alfard. The caves are accessed through Azha Village. The mining of Flame Ice acts as a major livlihood for the people of Azha as well as a target for abuse by Alfard's government. This is due to the fact that Flame Ice plays a crucial role in the cooling of machina, on which Alfard deeply relies. One of the five End Magnus is located deep within these. The caves are inhabited by various fire monsters as well as the Lord of the Lava Caves.
The caves serve as the location where the final End Magnus is unsealed, and Geldoblame's intentions are revealed.
The theme for this level is often considered notorious among Metroid fans for its music, which appears to be ripping off Norfair from Super Metroid.