This page shows the submenu, but also shows the other sidebar content underneath it. (Read more about sidebar content).
It's easy to choose which option you want – you just select it from a drop-down menu when you create or edit the page. There's a video to show you how.
If you like, your sidebar can have a photo with a short piece of welcome text. (But if you're as camera-shy as I am, don't worry - it's totally optional!)