Add this address to Google, Apple or Outlook Calendar to see this calendar there. It shows what you can see, and it is read-only.
MY OTHER ADDRESSES
Forward an invitation to your collection address from any of these and it is added to the calendar. Anything sent from elsewhere is ignored. You can also have invitations delivered to one — useful if you keep a work calendar and a personal one.
Another address
DEVICES
A key a shortcut on your phone carries, so it can add to the calendar without signing in. It can add an entry and do nothing else — it cannot read your documents, change anything, or remove anything.