This is Services Page. You can edit it at Pages -> Sevices in Administrator WordPress Page. It displays many Services have in hotel ( include images). If you don’t want to show it on MenuBar, you can edit it at Appearance ->Menus->header_menu

If you want to delete this page, you can delete it at Pages in WordPress Admin page, but you shouldn’t do it. If you deleted this page, you could restore it by set default button on Layout Settings