My father was born in Ireland and I was born in Canada. Children of an Irish father are automatically Irish citizens so all I did was apply for a passport (showing my birth certificate and my father’s). This was 30+ years ago. Check on the Irish embassy website. They should have the current info. I think you can apply based on grandparents. Make sure there is no residency requirement (unless you want to live there for a year).We are still considering..... How hard is it do so? Will one option be easier than the other?