Mike--fair response. I have heard of St. Patrick's Day parades in New York, but where I live, there are no celebrations that I'm familiar with. I'm also aware that it originated in Ireland as a religious holiday and I seem to remember some connection with snakes. However, what I described is what I am familiar with in the area I live. There are lots of ads from local drinking establishments encouraging people to come to their location to party. I was trying to determine what sort of celebration OP might be anticipating on the ship and intended no offense to anyone who celebrates the day as a religious day. I should be more sensitive to the fact that this is an international web site.
It's great that you celebrate the day as a religious day and with family activities. That sounds like the way a day should be celebrated.