Volcanic caves of Victoria (Large Tubes)

Selected photographs and diagrams

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Entrance to Harman 2 Cave.
The Byaduk Caves have the largest tubes in the region.
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Fern Cave still has some Tree Ferns.
Originally most of the collapse dolines had tree ferns, but they were removed for home gardens. Only in Fern Cave did they survive because the entrance is overhung.
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Collapse doline of Harman 1 Cave, Byaduk.
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Most of the big tubes have extensive areas of breakdown ...
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... but there are some preseved sections of the original lava floor.
Harman 1 Cave.
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Ropy lava ridges in Harman 1 Cave, Byaduk
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The tubes of Hamilton Lava Cave are intermediate in size.
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