Summer HolidaysThis entry was posted in School Holidays on June 20, 2022 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: July 21, 2023 – August 31, 2023 all-day 2023-07-21T00:00:00+01:00 2023-09-01T00:00:00+01:00 School Holidays