Possible to Have 3-Deep menu tabs?

Hello everyone! I am creating an informative site about moving to Nicaragua. One of the main header tabs is called ‘Living in Nicaragua’ and I assigned this page as a parent to other informative pages such as ‘Where to Live’, ‘Quality of Life’ etc..

My question is this: Is there a way to create posts or pages and somehow make the ‘Quality of Life’ page a parent to topics I wish to go into greater detail? In other words.. is there a way that when visitors scroll over ‘Living in Nicaragua’ and see ‘Quality of Life’, can they then scroll over Quality of Life in which I then have a single post or page each for Public Transportation, Hospitals & Crime that is easy for them to click on? I have less interest in post categories and a blog-like structure as much as I do a simple way for people to come to my site and look for exactly the topic they want.

Not sure what the correct term would be for this(or how to eloquently describe it, for that matter) so I just nick-named it ‘3-deep menu tabs’. Any help would be greatly appreciated!