Post-Christmas Markets

Surely they could not call it Christmas markets if they are not open!

The Bridges tour isn't labeled as a Christmas Markets River cruise like the non-bridges one. It's listed as Holiday Magic: Danube Family River Cruise.

I googled and found this:
No, most Christmas markets along the Danube typically close before or on December 26th. While some markets may stay open longer, the majority, especially those associated with the Advent season, conclude their activities by Christmas Day or shortly thereafter.
Here's a more detailed breakdown:
Typical Closing Dates:
Many markets along the Danube, including those in Budapest, Vienna, and Passau, generally end their season around December 23rd.
Post-Christmas Markets:
While some markets may extend their operations into late December, these are often rebranded as "New Year's markets" and may have a slightly different focus.
River Cruises:
Danube river cruises featuring Christmas markets often coincide with the Advent season and typically conclude before or around Christmas Day.
Specific Examples:
Some markets like the one in Passau may close on December 22nd, while others in Budapest may have limited hours on December 25th and 26th.