Your daily guide should say what services are available, I've been on ships where they sometimes ask if anyone of a certain faith is willing to conduct , or participate in, a religious service of a particular denomination. Might want to ask at the Pursers desk when you get on ship; if there isn't a service for your affiliation planned, they may be able to let you know of others' on board interested in joining you for worship. Good luck and enjoy your cruise!
On our April 7 Hawaiian cruise, there was a Catholic prist onboard who celebrated Mass on all days and after Mass on Sundays, he conducted a service for other faiths. A high five to Celebrity.
You picked a nice ship........have fun.
Thank you for your question. I was wondering the same thing, but hadn't written yet. We are sailing on August 3rd. and I wonder if there will be a priest on board to say mass. Hope you have a wonderful trip.