Subrosia

Subrosia is a subterranean lava world beneath the world of Holodrum. The inhabitants, Subrosians, can access all parts of Hyrule from their land. To outsiders, this land is only accessible from Holodrum through strange portals.

The Temple of Seasons caused quite a ruckus among the Subrosians when it sank into their homeland. It is not known what used to reside where the Temple of Seasons landed, although one Subrosian mentions that it hit the East Plaza.

The currency used in Subrosia is Ore Chunks, which can mainly be found by chopping down bushes or digging up the ground. The ore can be used to buy Gasha Seeds, hearts, more ore and other things in a market in Subrosia.

You can also obtain Dimitri's Flute here, a item used to summon Dimitri. Also, the only dungeon here is the final one in the game: the Sword & Shield Maze.

Areas of Subrosia
The many signs of Subrosia mark and name boundaries of specific spots. The map squares also have names to the areas listed.
 * Subrosian Volcanoes are found in the Northwest plus much of the Northern areas and encompasses the Sword & Shield Maze.
 * Subrosian Wilds – borders the Subrosia Village, Treasure Grove, and Subrosian Volcanoes.
 * Subrosia Village – Central area of ''Subrosia' home to nearly all Subrosians and their Market.
 * Treasure Grove – Southwest corner of Subrosia
 * Subrosia Cemetary – Southern area between the Seaside, Treasure Grove, and Subrosia Village
 * Subrosia Seaside – Directly South of the village and stretches to the Lava Lake
 * Lava Lake – Subrosia's Southeastern-most feature.
 * House of Pirates - The place where the Piratians take up residence while in Subrosia.
 * Temple of Seasons – Inhabitants claim the Temple of Seasons fell into Subrosia rather suddenly. It is found in the Northeast.

Trivia
The trees in Subrosia look similar to the trees found in the Dark World in A Link to the Past.