The Mira Lava Cave is a standout feature in the Auckland Volcanic Field due to its exceptional size, length, and unique geological formations. It was discovered by Extreme Pursuit in 2023. Named after the star Mira, with its distinctive long, tail-like appearance, the name also derives from the Latin word for “wonderful” or “astonishing,” aptly capturing the cave’s remarkable nature. The cave is divided into three distinct sections: Mira Alpha, Mira Beta, and Mira Gamma.
Cave Type: Lava Cave
Location: Auckland Volcanic Field
Surveyed: Yes
Mira Alpha, the westernmost section, has a classic triangular profile with a high ceiling and ample space. A striking white bacterial biofilm covers the walls and ceiling, where it is beautifully interspersed with delicate stalactites and lava straws. Iron-coloured water droplets trickle from the stalactites. The floor displays a mosaic of red, orange, and yellow lava flows, evidence of varying degrees of iron oxidation.
Mira Beta, the central section of the cave, features a six-meter-high skylight that illuminates the chamber with natural light. The interior walls are lined with smooth formations that resemble jersey barriers, alongside remarkable encrustations & speleothems. This diversity of geological features is truly awe-inspiring. Near the skylight, a high side passage branches off with a striking lava fall.
Mira Gamma, the eastern section, has a fractured ceiling and most of the floor is covered in lava blocks. Additionally, a smaller, lower-level cave extends beneath the main tube. This sub-level cave, though short in length, showcases remarkably smooth walls with delicate formations that are potentially gypsum encrustations.
