How do I unsubscribe a calendar on macOS Calendar application?

Calendars are processed by the calendar application and that's where they're unsubscribed. Unsubscribing can only be done in the macOS Calendar application, not at WebCal.Guru.

Step 1
If the calendar list is not shown, click Calendars.
If the calendar list is not shown, click Calendars.
Step 2
Select a calendar to delete.
Select a calendar to delete.
Step 3
Right-click on the calendar and select Unsubscribe.
Right-click on the calendar and select Unsubscribe.
Step 4
Alternatively, you may open the Edit menu and select Delete.
Alternatively, you may open the Edit menu and select Delete.