Author Topic: Coastal Caves  (Read 6973 times)

Offline Cookie

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Coastal Caves
« on: July 06, 2007, 11:56:02 am »
This is to do with the consultation on extending Countryside Access (CROW) to our coasts.

I need to get an idea of the number of coastal caves (or mines/adits) we have and whether the access is public or private.

I guess the first category are solutional caves which meet the coast. These tend to be more interesting and have individual names. E.g. Beachy Head Cave, Blacknor Hole.

The second category is where the caves have been formed by the sea. These tend to be smaller, more numerous and better described by and area. E.g.  Berry Head, The Gower.

I'm also interested those that aren't in limestone (if any).

Anyone know a good reference?

My list so far.

Category 1
Beachy Head Cave  - public
Blacknor Hole, Portland - public
Sandy Hole, Portland - public
Tilly Whim Caves, Dorset - Private
Merlin's Cave, Cornwall - public

Category 2
Brean Down - 3 - Public
Portland - many
Dorset - a few
Berry Head - many
The Gower - many

Not many, but a start.  :-[

 


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Offline gus horsley

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Re: Coastal Caves
« Reply #1 on: July 06, 2007, 12:20:18 pm »
I know of loads of sea caves and adits in Cornwall.  Do you want grid refs?  It could take some time to categorise them all but I could give them to you in chunks.

Offline graham

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Re: Coastal Caves
« Reply #2 on: July 06, 2007, 12:21:38 pm »
Cookie

Someone somewhere I am sure has done research on sea caves in the UK. One thought is that something had been published by Oldham, but he'd have put an advert up by now if that has been the case. ;)

My second thought is that you should ask Charlie Self who has done a fair bit of stuff on non-karst caves. I'll pm his phone number to you.
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Offline Peter Burgess

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Re: Coastal Caves
« Reply #3 on: July 06, 2007, 12:24:09 pm »
Tilly Whim Caves are definitely in the wrong category as they are simple stone quarries and not natural solution caves.
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Offline Peter Burgess

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Re: Coastal Caves
« Reply #4 on: July 06, 2007, 12:30:55 pm »
Beachy Head Cave is in chalk, not limestone.
Merlin's cave (assuming this to be at Tintagel) I thought was an erosional cave, in killas.
Not in the list - Canterbury Cave, at St. Margaret's Bay near Dover is a solutional cave in chalk. Public.
Some caves in the chalk cliffs of Thanet, Kent. Some man-made, some erosional caves. Public.


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Offline Cookie

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Re: Coastal Caves
« Reply #5 on: July 06, 2007, 01:22:04 pm »
I know of loads of sea caves and adits in Cornwall.  Do you want grid refs?  It could take some time to categorise them all but I could give them to you in chunks.

Broad brush approach at this stage. So areas of interest with highlighted notable caves is best.
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Offline Peter Burgess

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Re: Coastal Caves
« Reply #6 on: July 06, 2007, 01:24:26 pm »
Don't miss out any notable caves that are SSSIs like Beachy Head. There may be others.
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Offline Cookie

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Re: Coastal Caves
« Reply #7 on: July 06, 2007, 01:24:58 pm »
Tilly Whim Caves are definitely in the wrong category as they are simple stone quarries and not natural solution caves.


Your entirely correct. I need a category 3 - Mines, Adits and other subterranean features.

 :( No modify button.
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Offline Cookie

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Re: Coastal Caves
« Reply #8 on: July 06, 2007, 01:28:52 pm »
Beachy Head Cave is in chalk, not limestone.
Merlin's cave (assuming this to be at Tintagel) I thought was an erosional cave, in killas.
Not in the list - Canterbury Cave, at St. Margaret's Bay near Dover is a solutional cave in chalk. Public.
Some caves in the chalk cliffs of Thanet, Kent. Some man-made, some erosional caves. Public.

Thanks for the additions. I'll post a revised list presently.
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Offline Peter Burgess

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Re: Coastal Caves
« Reply #9 on: July 06, 2007, 01:29:34 pm »
The broad brush approach would suggest including the Purbeck coast, with Tilly Whim, and the cliff-quarries at and around Dancing Ledge - Winspit area. Some private, some public.

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Re: Coastal Caves
« Reply #10 on: July 06, 2007, 01:47:45 pm »
Fingles cave Staffa, Public.

Offline gus horsley

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Re: Coastal Caves
« Reply #11 on: July 06, 2007, 03:43:05 pm »
North Coast of Cornwall:
Cathedral Cavern (pub)
Seal Hole (pub)
Tea Caves (pub)
Holywell Cave (pub)
Sally's Bottom Caves (priv)
(All non-solutional)

Adits:
Whipsiderry Adits (gated)
Mawgan Porth Adit (pub)
Wheal Golden (priv)
Gravel Hill Mine (gated)
Wheal Ramoth (pub)
Wheal Droskyn (pub, some gated)
Wheal Perran (pub)
Great St George (pub)
Cligga Mine (pub)
Wheal Prudence (pub)
Trevaunance Adits (pub)
Polberro Mine (pub)
Wheal Coates (pub)
Wheal Charlotte (pub)
Wheal Tye (priv)
Carbis Bay Adits (4-pub)
St Ives Consols (gated)
Carnelloe Consols (pub)
Pendeen Consols (pub)
Geevor Deep Adit (gated)
Levant Adits (pub)
Botallack Adits (pub)
Kenidjack Adits (pub)
Cape Cornwall Adits (pub)
St Just United (pub)
Wheal Bellan (pub)
Wheal Hermon (pub)
Wheal Letcha (pub)
Pol Pry Adits (pub)

I'll get together a list for the South coast later.





Offline Ed W

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Re: Coastal Caves
« Reply #12 on: July 06, 2007, 04:50:27 pm »
Stair Hole (next to Lulworth Cove) has an interesting set of sea caves connecting the two large natural arches.  The through trip has several entrances, and provides a pleasant swim/desperate duck/sumps depending on the state of the tide and swell.

Never had anyone suggest that access here is anything other than public.
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Offline Cookie

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Re: Coastal Caves
« Reply #13 on: July 06, 2007, 05:45:34 pm »
Ed has reminded my that the landowners currently deny access to Blacknor Hole and Sandy Hole. So they are private.
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Offline Les W

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Re: Coastal Caves
« Reply #14 on: July 06, 2007, 06:50:37 pm »
Beachy Head Cave is in chalk, not limestone.

Chalk is Limestone!!  :read:
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Offline Les W

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Re: Coastal Caves
« Reply #15 on: July 06, 2007, 06:55:31 pm »
One thought is that something had been published by Oldham, but he'd have put an advert up by now if that has been the case. ;)

Complete caves of Devon (Oldham) lists many sea caves.

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Offline Peter Burgess

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Re: Coastal Caves
« Reply #16 on: July 06, 2007, 07:26:21 pm »
Beachy Head Cave is in chalk, not limestone.

Chalk is Limestone!!  :read:

Oh no it isnt.
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Offline Peter Burgess

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Re: Coastal Caves
« Reply #17 on: July 06, 2007, 07:28:39 pm »
Beachy Head Cave is in chalk, not limestone.

Chalk is Limestone!!  :read:

Oh no it isnt. Chemically it is the same stuff more or less, structurally they are like chalk and cheese..... Actually, not a bad comparison.......

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Offline graham

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Re: Coastal Caves
« Reply #18 on: July 06, 2007, 07:32:01 pm »
Beachy Head Cave is in chalk, not limestone.

Chalk is Limestone!!  :read:

Oh no it isnt.


In a list of definitions of limestone, the first was:

a sedimentary rock consisting mainly of calcium that was deposited by the remains of marine animals

And the Concise OED gives, for chalk:

'white soft earthy limestone used for burning into lime and for writing and drawing.

So I would say that "Oh yes it is!" would be a reasonable response at this point.
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Offline Cookie

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Re: Coastal Caves
« Reply #19 on: July 06, 2007, 07:40:04 pm »
From The Concise Caves Of Devon

North Devon Coast
Baggy Point
Burrow Nose Cave
Saunton Cliff Caves
Watermouth Cave

South Devon Coast
Berry Head Sea Caves
Devils Point Sea Cave
Durl Head Cave
Hope Cove Caves
Ladram Bay Caves
Madeira Road Sea Caves
Mackeral Cove Sea Caves
Man Sands Sea Cave
Slater's Cave
South Sands Cave
Thunderhole Point
Thurlston Rock Cave
Tom Grolier's Hole

No idea about access
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Offline Les W

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Re: Coastal Caves
« Reply #20 on: July 06, 2007, 07:46:54 pm »
Taken directly from the Collins Dictionary of Geology:

"Limestone, n. A sedimentary rock composed almost entirely of calcium carbonate (CaCO3), mainly as CALCITE."

It goes on to list various types of limestone and under Organic Limestones it says that these consist of shell remnants or of calcite precipitated by certain algae eg. coral limestone, crinoidal limestone, chalk.

Listed under CHALK it gives:

"Chalk, n. a soft, earthy, fine-grained white to greyish LIMESTONE of marine origin, composed almost entirely of biochemically derived calcite.

 :read:





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Offline Peter Burgess

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Re: Coastal Caves
« Reply #21 on: July 06, 2007, 07:50:16 pm »
Oh no it isnt. The stuff used for writing and drawing is artificial and is calcium sulphate I believe. I would nor consult the OED for a technical definition. Apart from burning to lime or cement, there is no common use I can think of between the two, which rather speaks for the differences between the two rocks. When did you last hear anyone speak of the limestone cliffs of Dover.
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Offline Les W

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Re: Coastal Caves
« Reply #22 on: July 06, 2007, 07:55:47 pm »
From The Concise Caves Of Devon

...snip

South Devon Coast
 ...snip


If you look in the back of the "Pink book of lies" you will find in one of the updated sections - Anemone cave. I think it is claimed as Devons longest phreatic cave. It resides at sea level and access is by swimming at low tide.  :o
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Offline SamT

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Re: Coastal Caves
« Reply #23 on: July 06, 2007, 07:59:12 pm »
Can we start a different topic for limestone/chalk debate  ::)
This is a serious topic by cookie and is in danger of being over run by the usual UKCaving pedants.
do we care :spank:

Back on Topic.

What about the pembroke area - the only one I know is the one taken by the climbing route 'Perposterous Tales' at bosherston head - this is on the MOD range, so  public some of the time.
http://www.rockfax.com/databases/r.php?i=17750

Gogarth has Parliament House Cave at North Stack on Anglesey. Public.



Offline Cookie

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Re: Coastal Caves
« Reply #24 on: July 06, 2007, 07:59:39 pm »
Are there any sea caves or caves that meet the sea on the East coast?

The Northumberland and Durham coast seems to be made of limestone.

There also seems to be limestone on the west coast around Lancaster. Any caves there?
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