The cruise ship Elbe Princesse first sails into the newly lifted chamber near the town of Mělník.

The historic chamber was completed over three years in 1905 and allowed ships up to 4.5 meters to pass through. In September 2021, its reconstruction was completed so that even ships up to 7 meters in height could pass through. This opened up the route along the Elbe and Vltava not only to the capital but also for larger ships. In the past, the Elbe Princesse had difficulty sailing through the original chamber, but today, 6 April 2024, she was the first large ship to sail through the new lifting chamber, thus opening up new tomorrows. More you can red at the wikipedia.
The French ship sails in viking river cruises colors and its measurements can be found in the second video, or wikipedia. I mean... 95 m long, 10.5 m wide and 80 passengers. The cruise from Berlin to Prague takes 10 days and includes several stops in major cities along the cruise line. The ticket is not cheap and the latest figures add up to about 70 000 Kč.