On the left side of the screen, select the drop-down menu next to “Other Calendars”
Click on “Add by URL”
Copy and paste one of the following links from the bottom of the page.
Click the “Add Calendar” button to start the import process.
The events should be visible on your calendar. To enable or disable calendar visibility, click the calendar name on the left side of the screen.
To add the calendar to Outlook:
Select the “Calendar” tab on the lower left side of the window.
Right click on “My Calendar”
Hover over “Add Calendar” and select “From Internet…”
Copy and paste one of the links below and select “OK.” NOTE: Replace “http://” with “webcal://”. The address alone will not work.
A new calendar should appear under the “My Calendar” header. Make sure there is a checkbox next to the calendars you would like to view. If you would like to view multiple calendars on the same page, go to the “View” tab on top of the screen and select “Overlay.
Unsubscribe from a calendar on you iPad/iPhone
In Settings tap on Mail, Contacts, Calendars.
Tap on Subscribed Calendars to see your subscriptions.
Tap on the subscribed calendar you wish to delete.
Tap on the Delete Account button at the bottom on the display.
Tap on the Delete button of the confirmation popup.
The subscribed calendar is deleted and should no longer appear in the iPad Calendar calendars list.