School ClosedThis entry was posted in School Holidays on July 12, 2021 by Castell Alun High School Calendar Add to Calendar Add to Timely Calendar Add to Google Add to Outlook Add to Apple Calendar Add to other calendar Export to XML When: December 22, 2021 all-day 2021-12-22T00:00:00+00:00 2021-12-23T00:00:00+00:00 School Holidays