|Position||Southern Continent (Voya Nui)|
The Caves were the upper part of the larger group of caves in the Southern Continent that the Av-Matoran used to inhabit.
When the Great Cataclysm caused Voya Nui to rocket upwards to the surface of Aqua Magna, the caves were transported with the landmass. Later, when the Piraka arrived on the island of Voya Nui, they stationed Nektann guards in the caves to monitor the comings and goings of the Antidermis-enslaved Matoran population.[VNOG, Ch. 3]
When Teridax was killed in the Battle of Bara Magna, the Nui Caves were severely damaged, and the Matoran evacuated to Spherus Magna. Later, the Nui Caves, along with all other locations in the Matoran Universe, were dismantled.
- Chat with Greg Farshtey, 18 August 2014
|Mount Valmai (Lake of Lava) | Lake of Protodermis | The Green Belt | Desert of Sorrows | Nui Caves | Ring of Ice | Cape of No Hope | Lagoon Entrance|
|Solis Magna||Spherus Magna (Aqua Magna | Bara Magna | Bota Magna) | Red Star|
|Metru Nui (Maze of Shadows) | Karzahni | Zakaz | Xia (The Mountain) | Northern Continent (Tren Krom Peninsula) | Artakha | Stelt | Odina | Southern Continent (Voya Nui, Mahri Nui) | Karda Nui | The Pit | Destral | Nynrah | Tren Krom's Island | Visorak | Daxia | Southern Islands (Artidax)|
|Field of Shadows | City of Silver|
|The Melding | Spherus Magna | Toa Empire | The Kingdom|
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