How to add a shared Google calendar on your GMail account.
Logon to your GMail account.
Select APPS in the upper right and select Calendar
Click the down-arrow next to Other calendars.
Select Add by URL from the menu.
Click Add calendar. The calendar will appear in the Other calendars section of the calendar list to the left.
Adding Google Calendar to Mac’s iCal
Create a new calendar in iCal
Paste this in to the Subscribe Field:
Give the Calendar a name (MHC Calendar)
If you use different calendar apps and want to sync the MHC calendar, please reach out (firstname.lastname@example.org) and our IT team will get you pointed in the right direction.