“Following” a group calendar, sets you up to get email notifications from that group when they add or update events on their calendar. To follow a group calendar, go to the group calendar home page and click the “Follow This Group” button on the right of the page. To unfollow, you can click on the blue "Following" button on the right-hand side of the group page, or from your Account Settings you can click the unfollow button next to the group name.
IMPORTANT NOTE: Following a calendar does NOT automatically add all of the groups existing events to your personal calendar. To learn how to add events to your personal calendar, click here.