I had a customer that had a few different email accounts, as well as an iphone, ipad, and MS outlook running on a laptop.
She tried to merge everything together (emails, address book, and calendar) using icloud, but couldn’t get it to work, so I decided to sync using googles cloud services (which I have been using successfully for over 2 years!).
All 3 systems had their own little problems.
But in this case, I found it difficult to get the iphone and ipad to synchronise all the shared calendars… the Apple devices only showed the main calendar entries… but none of the other linked calendars.
I re-created the i-device accounts a few times, waited 24 hours, checked the settings, but the iphone and ipad just wouldn’t show the other shared calendars.
Until I discovered this little hint:
After the google account has been setup on the i-device, and has synced at least once…
From the iphone (or ipad), you use the built-in Safari browser to go to:
At that point, sign in to your gmail google account, and select the iphone / ipad to which you want to sync extra calendars, then select the calendars you want to appear on your iphone.
Now when you go into the calendar and take a look at the different calendars available, you will see all the calendars that you selected previously. Now just tick the ones you want to make visible.
I wish there was an easier way to do this…