, what is the best way to convert the current site into one with links to additional locations? Each location will have different menus, photos, etc. but will have the same name.

The current site? That completely depends on your theme’s design and your personal preference.

I would create a parent page for each location and sub-pages with the various content. But that is just 1 solution, the possibilities are endless.

Maybe you should consult with a web designer.