In primary schools in the Netherlands children are off school every Wednesday afternoon. The idea is that it gives children time to do extra-curricular activities without cramming every afternoon after school full.
Or they get together with school friends and play on the streets, build dens in the local park, clamber around in the mud and fall in the shallow sloot in shoes they've owned for less than two weeks...... and this expat mama wouldn't have it any other way! (Though my son will be paying for his next pair of shoes himself......)
I am extremely grateful for Wednesday afternoons Dutch style.