+A **cave** is a natural void in the [Rock](/wiki/rock) of the [Earth](/wiki/earth), large enough for human entry. These subterranean spaces often form through water erosion or volcanic activity, holding unique ecosystems and geological wonders.
+## See also
+- [Geology](/wiki/geology)
+- [Speleology](/wiki/speleology)
+- [Groundwater](/wiki/groundwater)
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