Ogof Agen Allwedd
Overview
 
Ogof Agen Allwedd or Agen Allwed, also known as Aggy, is, at 32½ km long, one of the longest cave
Cave
A cave or cavern is a natural underground space large enough for a human to enter. The term applies to natural cavities some part of which is in total darkness. The word cave also includes smaller spaces like rock shelters, sea caves, and grottos.Speleology is the science of exploration and study...

 systems in Wales
Wales
Wales is a country that is part of the United Kingdom and the island of Great Britain, bordered by England to its east and the Atlantic Ocean and Irish Sea to its west. It has a population of three million, and a total area of 20,779 km²...

, and the longest cave system on the Llangattock
Llangattock (Crickhowell)
Llangattock is a village in the Brecon Beacons National Park in the south of Powys in south Wales. It lies in the Usk Valley just across the river from the town of Crickhowell...

 escarpment
Escarpment
An escarpment is a steep slope or long cliff that occurs from erosion or faulting and separates two relatively level areas of differing elevations.-Description and variants:...

, where Ogof y Daren Cilau
Ogof y Daren Cilau
Ogof y Daren Cilau is one of several cave systems in the Llangattock escarpment near Crickhowell in south Powys, Wales.Its awkward 517m entrance crawl is a natural barrier to any casual visitor and precludes the need for a locked gate to protect it from vandals.Highlights of Daren Cilau include the...

 is also found.

There are several round trips that can be followed within the system, but all trips start via the short entrance series and first boulder choke, which is mostly easy caving
Caving
Caving—also occasionally known as spelunking in the United States and potholing in the United Kingdom—is the recreational pastime of exploring wild cave systems...

. The round trips include the Grand Circle - along Main Stream Passage, which has four boulder chokes (areas of severe breakdown) in it , and Southern Stream Passage, a long, wet and tedious passage.
Quotations

Adam and Eve had many advantages, but the principle one was that they escaped teething.

Mark Twain, Pudd'nhead Wilson's Calendar

Adam and Noah were ancestors of mine. I never thought much of them. Adam lacked character. He couldn't be trusted with apples. Noah had an absurd idea that he could navigate without any knowledge of navigation, and he ran into the only shoal place on earth.

Mark Twain, Speech, November 9, 1901. Reported in The New York Times, November 10, 1901

“Adam knew Eve his wife and she conceived.” It is a pity that this is still the only knowledge of their wives at which some men seem to arrive.

F. H. Bradley, Aphorisms, no. 94 (1930)

Adam, man's benefactor — he gave him all he has ever received that was worth having — Death.

Mark Twain Notebook, 1902-1903

Adam was but human — this explains it all. He did not want the apple for the apple's sake, he wanted it only because it was forbidden. The mistake was in not forbidding the serpent; then he would have eaten the serpent.

Mark Twain, Pudd'nhead Wilson|Pudd'nhead Wilson (1894)

After all these years, I see that I was mistaken about Eve in the beginning; it is better to live outside the Garden with her than inside it without her.

Mark Twain, Extracts from Adam's Diary|Extracts from Adam's Diary (1904)

Ever since Eve gave Adam the apple, there has been a misunderstanding between the sexes about gifts.

Nan Robertson, New York Times|New York Times (November 28, 1957)

It all began with Adam. He was the first man to tell a joke — or a lie. How lucky Adam was. He knew when he said a good thing, nobody had said it before. Adam was not alone in the Garden of Eden, however, and does not deserve all the credit; much is due to Eve, the first woman, and Satan, the first consultant.

Mark Twain, Notebook, 1867

Let us be thankful to Adam our benefactor. He cut us out of the 'blessing' of idleness and won for us the 'curse' of labor.

Mark Twain, Following the Equator, Pudd'nhead Wilson's New Calendar

 
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