Descent (24), July 1973 OUT OF...
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Dave Yeandle shows how much diving has revealed in our northern caves.
Triple Hole on Mendip finally reveals its secrets.
A descent of a major disused mine in North Wales.
Ogof Dydd Byraf has been saved from quarrying – for the present.
Flint Ridge Cave and Mammoth Cave in Kentucky have finally been linked, creating the largest known cave in the world.
As always seems to happen, the expedition ran out of time ...
Cambrian Caving Council is forced to react quickly to plans which might damage Ogof Ffynnon Ddu.
Cover: A cascade in Ogof Ffynnon Ddu 2. Photo: Clive Westlake