Tides have a major influence on what we do and where we go at sea, - we need to know just how much water there’s likely to be.  This section explains the action of the Moon and Sun on the water all around the globe.

Why is it different in various positions? -        How can we predict the depth of water? -              Is it safe to anchor overnight/ -                            The ‘Twelfths Rule’, how does it work?

One area where people fail navigation examinations is in Set and Drift - working out how far the tide is carrying you and plotting a course to counter that.

This section will make sure that you don’t fail!

We go through each step of the procedure - and you can go over it again and again until you’re absolutely sure you’ve got it!

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