You may want to allow Activity Group leaders to export the schedules for their groups. Unlike Academic groups, Activity group do not have a Schedule tab. To export the iCal feed, you will need to make sure iCal is enabled in Group Page Options and the user must export the data from My Groups screen.

To enable iCal feeds:
  1. From the menu in the top left select Academics
  2. Navigate to Content > Class Pages > Class Page Options
  3. Under Group Page Options select Activities
  4. Mark iCal Schedule

To view the schedule and export it as an Activity Group Owner:
  1. Select Groups > Find More
  2. Click the green iCal feed icon  calendar feed icon
  3. Copy the Webcal URL

To add that Webcal URL to an external calendar, follow the steps in Adding a Webcal Feed to my Device/Calendar