It is very popular to sail in the canals with a group of friends, some beer and a lot of very loud music. That last thing many people don't like so much and the police had ordered limited decibels, but it didn't work at all.
A bit crowdy on the water, they all have to go through the same passage.
The cafe "The barking fish" in the Jordaan has every year a special facade about the Royal family. This is our princess Maxima in a parody on a television programme "The Voice of Holland"
See here for the link of last year, Queen Beatrix in the Matrix.