Ice skating on Spaarne, near Haarlem

For the fourth year in a row, we have a few weeks of good frost, and the ice is nice and thick on many canals and lakes. Is skipped work for a few hours today to enjoy the ice and went for a nice ride on my skates on the Spaarne canal, near Haarlem.
See http://youtu.be/9-JZgCUlxKo for a video impression....