Secondary Navigation

Site URL: https://www.freezeframeonline.org

Has anyone found a template that allows for a secondary navigation bar to be displayed on a mobile screen? I have attached a screen shot of the Festival page on our website (currently using the Adirondack template). As you can see, we have a secondary navigation menu for the Festival page that shows on desktop but not on cellular devices. I have checked the preview on a couple of other templates and it doesn't seem like this secondary menu would be displayed using them either. If anyone knows a way to get the secondary navigation to display on mobile devices without resorting to custom code, I would really appreciate this information!