The Falemauga Caves are large natural caverns in a series of lava-tunnels situated in the Tuamasaga district along the central ridge of Upolu island in Samoa.

[1] The caves were explored and excavated in the early 1940s by New Zealand anthropologist Derek Freeman[2] who published his report in the Journal of the Polynesian Society in 1944.

[1] Platforms constructed of stacked rocks, charcoal, stone adzes and marine shells were found in the caves.

Entrance to the main system of tunnels is about five and a half miles south (inland) of the coastal village of Malie.

During his field work, Freeman stayed in Mackenzie's house in Falemauga, located about 900 feet from the caves.

The caves are part of lava tubes, a result of old lava-flows near an extinct volcano called Sigaele[1] in the island's volcanic interior.

He also found numerous umu cook sites, fireplaces, and kitchen-middens as well as several lumps of ele a type of red volcanic rock used as a natural dye for Samoan siapo or tapa, a traditional bark cloth material.