1) copy this string into your clipboard: 

https://calendar.google.com/calendar/ical/keadle.net_48a34nlt4c6uq43jqd458orfdc%40group.calendar.google.com/public/basic.ics

2) On your computer, open Google Calendar.

3) On the left, above "My Calendars," click Add and then From URL

4) paste in the string you copied above, an click Add Calendar.

The calendar will appear on the left side under "Other calendars." as Heritage Social Group Calendar
(It might take up to 12 hours for changes to show in your Google Calendar)