You can add your webcal link to Outlook by following these steps:
Make sure you've created a WebCal link:
The go to your Mac and add this link as subscribed calendar.
- Open the Calendar app
- In the calendar app select
menu File > New Calendar Subscription and put the url in there.
Set the location field to iCloud to sync across all your devices (you need to be logged in with the same apple id across all devices).
Please let us know if you run into any difficulties and we'll do our best to help.