wp_list_pages Problem

Quick question. I am using the wp_list_pages template tag for the Nav Bar on this site:

https://www.hlcyouthfresno.org

What I want to know if it is possible is to have only the “children” pages be linked to – and not have the “parent” pages (i.e. “About” “Groups” “News”, etc) actually link to pages.

Is that possible? Thanks. Or is there a plugin workaround that would be easy? I just don’t want to have to hard-code the links into the header.php