You can also navigate the site using the side menu which can be found in the left-hand column of every content page.
The side menu shows all of the pages - children, grandchildren etc - for the section you are in.
Click on the "+" button to expand the menu so that you can see all of the pages in the section. Click on the "-" button to collapse the menu:
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The child page you are currently on is shown in bold:
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