While the best and easiest way is to subscribe with the +Google button in the bottom right corner of our calendar, for those a bit more tech savvy who want to be selective of the calendars they subscribe to, there are other options.
In the Calendar app , you can set up multiple calendars to keep track of different kinds of events. Although you can keep track of all your events and appointments in one place, you don’t have to. Additional calendars are easy to set up, and a great way to stay organized with all of our school activites.
To view multiple calendars, tap Calendars at the bottom of the screen, then select the calendars you want to view.
Go to Settings > Calendar > Accounts > Add Account > Other.
Tap Add Subscribed Calendar.
Enter the URL of the .ics file to subscribe to and any other required server information. You can also subscribe to an iCalendar (.ics) calendar by tapping a link to the calendar.
Note, if you choose to do this meathod instead of the +Google one click subcription, you will have to add each sub-calendar separately.