Ojamo Helmet 6.9.2012 from the default playback of the video is hd version if your browser is buffering the video slowly please play the regular mp4 version or open the video below for better experience thank you Watch Video
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Description: Cave diving at Ojamo mine. Cave diving in mines requires training, redundant kit, self sufficiency, team play and well-rehearsed skills to handle any emergency under water and under rock.nnThe Helmet route is a series of 13 mine halls arranged like pearls (Finnish: helmet) on a string. The ceiling of the halls is at a depth of 28 meters. Ojamo is a huge limestone mine which was in operation fom 1925 until 1965. During that time 8.7 million tons of limestone was excavated. After operations ceased
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