Remove a single event from Calendar subscription I am subscribed to Apple's holiday calendar, which is very useful. However, some holidays are not of interest for me - is there a way to delete selected events manually while keeping the rest of the subscription?
It is actually possible to download the subscription and then delete some events:

In the calendar app, right-click on the holiday calendar subscription and then "copy URL to clipboard". Paste this into a web browser, download the .ics file, double-click and finally we are there: All holidays for the next 10 years are imported, and all of the unwanted events can be deleted manually.