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These are yellow, with a yellow light of any rhythm. Topmark is usually an “X”. They are not “navigational marks” in the generally accepted sense, but are used to indicate such things as dredge spoil grounds, quarantine anchorages, special mooring buoys, tide poles, underwater pipes, etc If they are can or cone shaped.
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 Want to work as a Skipper or Deckhand?Study at home to gain Nationally recognised Maritime qualifications.
OTEN also offers many other TAFE courses which can be studied from home. See  OTEN Premises Strathfield Training & Assessment Vessels 'Cadence'
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Special Marks |
