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  2. Hālona Blowhole - Wikipedia

    en.wikipedia.org/wiki/Hālona_Blowhole

    The Hālona Blowhole was formed thousands of years ago during the period of volcanic activity in Oahu, [8] with Koko Crater 's lava flowing into the ocean. [9] The lava tubes extend into the ocean which are narrow at the top. [9] There is also a narrow rift along the base of the cliff which was formed by a large section of rock that broke away ...

  3. Blowhole (geology) - Wikipedia

    en.wikipedia.org/wiki/Blowhole_(geology)

    Blowhole (geology) 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. [1] The geometry of the cave and blowhole along with tide ...

  4. Koko Head - Wikipedia

    en.wikipedia.org/wiki/Koko_Head

    Koko Head. Coordinates: 21.261585°N 157.702949°W. Hanauma Bay, Koko Crater and Hawaii Kai. Koko Head is the headland that defines the eastern side of Maunalua Bay along the southeastern side of the Island of Oahu in Hawaii. On its western slope is the community of Portlock, a part of Hawaiʻi Kai. Koko Head (at 642 ft or 196 m) is an ancient ...

  5. List of lava tubes - Wikipedia

    en.wikipedia.org/wiki/List_of_Lava_Tubes

    Hālona Blowhole. Kaumana Cave – Hawaii. Kazumura Cave, Hawaii – Not only the world's most extensive lava tube, but at 65.5 kilometres (40.7 mi), it has the greatest linear extent of any cave known. [11] Kuna Caves – Idaho. Lava Beds National Monument – California. Newberry National Volcanic Monument – Oregon.

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  7. Category:Blowholes - Wikipedia

    en.wikipedia.org/wiki/Category:Blowholes

    A blowhole is a cavity formed when a joint between a sea cave (formed by erosion) and the land surface above the cave becomes enlarged. The sea cave and the land surface become conjoined when the roof of the cave collapses. Blowholes are formed by the process of erosion. When waves enter the mouth of the cave they will be funneled up towards ...

  8. File:Cockroach Cove, AKA Hālona Cove 03.jpg - Wikipedia

    en.wikipedia.org/wiki/File:Cockroach_Cove,_AKA...

    You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.

  9. Spouting Horn - Wikipedia

    en.wikipedia.org/wiki/Spouting_Horn

    Spouting Horn is a blowhole located on the southern coast of Kauai in the Koloa district. This area of Kauai is known for its crashing waves (nearby Poipu translates to "crashing" [1]). These waves erode lava rocks on the coastline which can create narrow openings, as is the case with Spouting Horn. With every wave, water shoots upward when it ...