Height of Tide, charted clearance

Sometimes it’s real important to know how high the tide is and what the datum is for vertical clearance.Queen enters Golden Gate

Charted clearance vertical is the distance between Mean High Water and the lowest part of the vertical obstruction.

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About Capt. Dan

Capt. Dan is an American Sailing Association certified instructor and runs a sail charter operation in Southern California. I'm particularly interested in sailing (obviously) and ecology issues, particularly those affecting the Channel Islands here in Southern California

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