Get child page's content to show on parent page

Hi all!
I have an issue which I just cant resolve. Im trying to get contents from a few child’s page onto the parent’s page.

I am creating a group website that owns a few local restaurants and in each div is an image of the restaurant and information about it.

I’ve looked all over and I cannot find the answer! Im sure it’s really easy but my PHP isnt the strongest language! :/