Question: 
I noticed the guest calendar on my own 🙂 However, none of my calendars that I set as Public show up there. Am I doing something wrong?

Answer:
The reason is that the events are set to Private by default when created. Public calendar allows users to view the calendar without login. But each individual events also have the option to be private or public. 

Related content:

  1. The admin I can only see the calendars I created. The other admin can’t see my calendars.
  2. Is there any way to have individual logins so that each user can manage their own calendar only?
  3. Admin user cannot add events to the other users calendars