15K cruise passengers on Christmas: how does that work?

Looking at the port schedule, there could be anything from 10K to 15K passengers in port on Christmas Day. How does that work? Reading on here, it seems most stores and restaurants will be closed. What do cruisers do on a day like this? Do they still go to a beach? Would a popular beach like Orient Bay have restaurants open? Would there even be enough transportation?

Just wondering.

Places will be opened to accommodate everyone.