"on your pc: In Google Calendar, are your Calendar settings showing that you are subscribed to those calendars?  Are there check marks next to them under 'Show In List'? Also in those settings did you go through the mobile setup? - yes to all, see "Capture 1.JPG" and "Capture 2.JPG"

On your iPhone:  Open your Calendar app, then hit the 'Calendar' button on the top left.  Scroll down, is the calendar you're looking for showing under 'Subscribed' and with a check mark?- yes, see "Capture 3.PNG"

Also on your iPhone: in Settings, click Mail/Contacts/Calendars, under Accounts is it showing your calendar under Subscribed Calendars? If so, click and see if it is turned on. Also in Mail/Contacts/Calendars, does the associated gmail address have calendars turned on?yes to all, see "Capture 4.PNG", "Capture 5.PNG" and "Capture 6.PNG".
"

any ideas?

thanks!