Subscribe with Google:

Go here and then click the "+" in bottom right.

Log-in with your Google account. 

Subscribe from your iPhone:

Go to Settings - Calendar - Accounts - Add Account - Other - Add Subscribed Calendar

Copy the link below into the "Server" space and click "Next" then "Save." 

 

https://calendar.google.com/calendar/ical/eastievfa.org_5pvuroqkt98tunhfn8ekn8o7gs%40group.calendar.google.com/public/basic.ics