I have embedded a Google calendar on our Pokaka site. Trying it here in WordPress. I’ll be amazed if the Gloogle Calender shows up here, but it does on the Pokaka website: http://www.lyfordtreks.co.nz/pokaka Click the link on the bottom of the page to go to the Calendar page.
Later: No, WordPress stripped it out, so it only works on webpages. But there it works very well! So have a look you may want to spend a night in our fantastic house in the hills!