Blowhole

Rarity: Common

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At a glance

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Notion

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Science and technology

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What Wikipedia says

In geology, a blowhole or marine geyser is formed as sea caves grow landward and upward into vertical shafts and expose themselves toward the surface, which can result in hydraulic compression of seawater that is released through a port from the top of the blowhole.

Excerpt from the Wikipedia article “Blowhole (geology)”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Dennis.clayton, CC BY-SA 3.0, via Wikimedia Commons.