Sync Multiple Calendars of Google Calendar to Phones
There is a long history of complaint that users of Google Calendar don’t get all the calendars synced to their mobile devices. Actually, there is a setting to select which calendars to sync, although it defaults only your main calendar and few others, and it is very difficult to find either on PC or on phone.
Just navigate to https://www.google.com/calendar/syncselect with your Google Account logged in. Select what to sync and that’s it!