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Featuring 176 pages of lavish photography, a history of this classic Welsh system's exploration and first hand accounts of that dramatic rescue - from both sides of the stretcher!
i do know in America they use thicker rope and instead of the Frogger system they use the Michell system and sometimes have 2-3 people on one rope, that is a great processed picture of Ellison's cave I went there in 2016, its a great abseil but getting back up that rope is an achievement by itself
the same process this photo went through is the same astronomers do to get all those nice colours and details, sometime a good astrophotography pic can have up to 40-50 layers sometimes more depending on how steady your tracking mount is, best pictures are tracked at 1.5arc seconds for astrophotography
is that where Veryovkina cave is? currently the deepest cave at this time,
Well at least until someone dives the rest of Huautla (the undiscovered parts)