iCal format:
https://calendar.google.com/calendar/ical/bkb67tsn92h3fammthjb9bqdmg%40group.calendar.google.com/public/basic.ics
Public URL:
https://calendar.google.com/calendar/embed?src=bkb67tsn92h3fammthjb9bqdmg%40group.calendar.google.com&ctz=America%2FLos_Angeles