The usual mass times are 7am & 8pm, from Monday to Saturday, and 7am, 10am, 6pm and 8pm on Sundays. If you speak Spanish, the church telephone numbers are (987)2-10-87 or (987)2-34-38. I hope that this is not too late for you.

I think 9 PM

Don't worry about not speaking Spanish. There are lots of taxi drivers outside the port who speak English. Just agree on the price before you go. It was a while back that we went, but it doesn't cost much. To get an idea, ask a few to get an idea of what the average cost is... There are also local guides outside the port who offer group excursions (cheaper than what it costs on the Cruise), so you can get one of those if you want to be on the safer side. Hope that helps.

There is a Catholic church not too far from Costa Maya. I found their Facebook page - search for Iglesia Catolica Mahuhaul.

It is quite a walk if you walk. Take a taxi.