This is an example of a page that you can create, but one that does not show up in your menu above.
These pages you can ‘deselect’ from your main sites navigation. But why I hear you ask!?
This page has been set as a Terms & Conditions page, one that you would not perhaps want to clutter up your menu, but one that you can direct link too, as we have from the very bottom of the footer.
Pages like these are also great as landing / conversion pages, that you may only advertise with certain marketing activities. The only way they can be found is via a search engine / your own site search or via an advert on a third party site or publication.
You could have new customer only offers or separate sign up / contact forms on these pages too.