Waves Beneath The Water, Secrets of freshwater life revealed

Original title: Nederland onder water

Directed by Arthur de Bruin

A journey into the hidden world of the Netherlands, beneath the water's surface, where extraordinary creatures inhabit a wondrous habitat. Thirty years ago, filming there would have been unthinkable: the polluted, murky waters were devoid of life. Now, the many efforts to protect the environment are paying off...