Veslan Cliffs, blow hole (2)

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Comments (6)

liander503 on August 16, 2012

What exactly is a blow hole, Andy. I find quite a number of possible explanations and translations, which doesn't really help. I like this picture nevertheless. Greetings, Li

kenfowkes on August 16, 2012

This is probably an opening at the top of a cave that is open to the surf below. When a wave of the right size comes into the cave, the force of the wave gets concentrated by the walls of the cave and the water ends up blowing up through the hole.

Andy Rodker on August 17, 2012

Quite right and a concise explanation, thank you Ken.

Li, I suppose my title isn't exactly accurate as some of the ejected water does get into this recess via a narrow open gully and is forced up and out. But I've listened long and hard and I swear that there is ALSO a blowhole here as Ken describes - you CAN hear the water below rushing to the back of a cave and being forced up and out through a roof cavity some seconds after a wave has crashed onto the foreshore. I feel that the two need not be mutually exclusive. I have posted true blowhole photos elsewhere on this site.

Thanks to you both.

Best wishes, Andy

liander503 on August 18, 2012

Thank you for the detailled explanation, kenfowkes and Andy. Must be an interesting experience. From what I read about blowholes I wasn't quite sure if they were natural phenomena or created by some mining or industrial activity. This here seems natural. Greetings, Li

janamare26 on August 19, 2012

Very nice photo.Like.Greetings,Mirjana

Andy Rodker on August 19, 2012

Many thanks, Mirjana. Best wishes, Andy

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Photo details

  • Uploaded on August 16, 2012
  • Attribution-Noncommercial-No Derivative Works
    by Andy Rodker
    • Camera: FUJIFILM FinePix J100
    • Taken on 2011/05/23 15:53:19
    • Exposure: 0.002s (1/480)
    • Focal Length: 7.10mm
    • F/Stop: f/5.200
    • ISO Speed: ISO64
    • Exposure Bias: 0.00 EV
    • No flash