bn:03277353n
Noun Concept
Categories: Length, distance, or range measuring devices, Underwater diving safety equipment
EN
distance line  Cave line  cave reel  continuous guide line  Continuous guideline
EN
A distance line, penetration line, cave line or guide line is an item of diving equipment used by scuba divers as a means of returning to a safe starting point in conditions of low visibility, water currents or where pilotage is difficult. Wikipedia
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EN
A distance line, penetration line, cave line or guide line is an item of diving equipment used by scuba divers as a means of returning to a safe starting point in conditions of low visibility, water currents or where pilotage is difficult. Wikipedia