The first Mine diving in Greece is a fact.
On Jan 23rd 2010 underwater speleologist Argyris Argyriadis (NACD & NSS-CDS) with the support of 5 dry cavers, dived successfully at the historic mines of Lavrio in Greece. The dive was on the 5th level, 80 meters below surface 400 meters distance from the entrance in the phreatic zone and penetrated into the 6th submerged level of the mine. It is the first successful dive in the mines at the lower level. Below are some pictures from the dive:
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