Can't sync google calendar to ical

I had google calendar working perfectly using CalDav before updating to Mavericks. Even after the update it worked perfectly. Then I deleted my google account on Mavericks so I could get the email working again. Now Mac Mail works perfectly with GMail IMAP. But, I can't get iCal to work using caldav and google calendar. Anybody got this working, and if so, how? Google Calendar changed their servers a few months ago, but I have the correct url. Help!