I’m planning on studying abroad in Greece soon, and I was wondering if attending Mass in the Greek Orthodox church fulfills my Sunday obligation…??
If there are no Catholic churches available in the area in Greece in which you are traveling, including Byzantine Catholic churches, you are dispensed from your Sunday obligation. You may, if you wish, attend an Orthodox church’s divine liturgy. Although Greek Orthodox have valid Communion, out of respect for Orthodox discipline which forbids intercommunion, you should refrain from receiving Orthodox Communion.