Use this link to look up the iCal address of the calendar you would like to add. LSSU Google Calendar iCal addresses
Step 1: Log in to your Yahoo account.
Step 2: Click on the Calendar App icon.
Step 3: Click on ‘Actions’ in the top menu.
Step 4: Click on ‘Follow Other Calendars’
Step 5: In the window that opens, Type the name of the calendar, paste the iCal address for the calendar you want to add in the ‘iCal Address’ field and then select the calendar color, refresh frequency, reminders and the method of communication for the reminders.
Step 6: Click Continue.
Step 7: Your calendar will now appear in the lower left column under ‘Others’.