Student
ROBERT BALDWIN
Ann Arbor, MI, USA
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Skipper Level V
Status: Big Time Sailor
Qualified days: 262
tides & currents
Posted 2018, Nov 23 00:15
I would submit that in the anecdote, at the beginning of the unit,the illustration given ( not being able to enter San Francisco bay). is a result of a current . Tidal current to be sure.