How to use the "Nicola II" surface <-> underground radio.
John Wilcock
18/07/2011
Oxford University Cave ClubPictures from the Picos de Europa, Asturias, SpainAbove GroundPictures taken 2011 (Xitu 2011 expedition) |
2011 Expedition Surface Pictures |
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How to use the "Nicola II" surface <-> underground radio.
John Wilcock 18/07/2011 |