School Calendar
Click the "+Google Calendar" link above to subscribe into your Google Calendar.
For apple devices, copy this link:
https://calendar.google.com/calendar/ical/pags.sa.edu.au_5tbl8hrsqjuqeu1ktl8tje35tc%40group.calendar.google.com/public/basic.ics
and then manually paste the link into Settings --> Calendar --> Accounts --> Add Account --> Other --> Add Subscribed Calendar.