Check out the instructions below on how to sync the calendar to various devices.
iOS (iPhone)
Launch the Settings app on your iPhone or iPad.
Tap on Calendars, then tap on Accounts.
Tap on Add Account.
Tap on Other.
Tap on Add Subscribed Calendar.
Enter or copy in:
https://calendar.google.com/calendar/ical/campoverdehsband%40gmail.com/public/basic.icsTap the Next button.
Tap the Save button.
Android
Open Google Calendar on a computer.
Next to Other Calendars on the left click on the down arrow.
Select Add by URL
Enter or copy in:
https://calendar.google.com/calendar/ical/campoverdehsband%40gmail.com/public/basic.icsClick Add Calendar.
It will now show up on the left side with other calendars. It may take up to 12 hours for it to completely refresh and update.