You can only add a calendar using a link if the other person’s calendar is public.
- On your computer, open Google Calendar.
- Next to “Other calendars” on the left, click the Down arrow .
- Select Add by URL
- Enter the calendar’s address in the field provided: https://calendar.google.com/calendar/ical/adaptiveclimbingclub%40gmail.com/public/basic.ics
- Click Add Calendar. The calendar will appear on the left side under “Other calendars.”