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posted to rec.boats.cruising
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external usenet poster
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First recorded activity by BoatBanter: Feb 2007
Posts: 60
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Valuable things to do while preparing for your next passage ...
Make a Secchi Disk, download the app to your smartphone, take readings, and when in a port with connectivity, upload your results.
See:
http://www1.plymouth.ac.uk/marine/se...s/default.aspx
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