Roll those trouser legs up and put your welly boots on - Ditch Days (Slootjesdagen) gives children the chance to learn all about the insects, reptiles and amphibians that live in the humble ditch. Ditch Days are officially on June 6-8, 2025, but activities take place all over the Netherlands from June 1-15.

Ditch Days activities for kids in the Netherlands 2025

It is an almost universal truth that kids love poking around in the places that no one wants to. If it's dark and dirty and neglected, they'll be in there like a shot - through the hedges and under the rocks. Ditch Days is a series of events throughout the Netherlands designed to use that impulse to teach children about the animals and plant life that live all around us, but are often not seen or thought about. 

The day is aimed at children aged between the ages of four and 12, but the Nature Guides do hope that guardians will get involved too - you're never too old to get excited about holding a frog! There are more than 100 sites throughout the country that you can visit, and each will have nets, maps and magnifying glasses to help the underwater exploration begin. Pond skaters, damselflies, dragonflies - they might be smaller than the more famous Dutch wildlife, but they are fascinating nevertheless!

A yearly event that educates children about the value of nature

The days are arranged by the The Institute for Nature Conservation Education (Instituut voor Natuurbeschermingseducatie), (IVN), and each event is largely run by volunteers, those adults who still have the childlike wonder and joy at nature and see the value in protecting it and teaching about it. They hope by educating children about the value of nature, even the scrubby bits in the corner of the park, they will take a love of nature with them into adulthood.

Citizen researchers

You can also become citizen researchers for the day! If you count up the different animals you see, you can report them to WaterDiertjes.nl so environmental scientists can use the data to track the health of water bodies across the country. This year is focussed on the Caddisfly, but all reports are welcome.

The most city-accessible events

• June 1, 11am-4pm: The Hague, Milieu Educatief Centrum Zuiderpark
• June 1, 11am-4pm: Leeuwarden, at the Rest Point Leeuwarderbos
• June 7-8, 11am-4pm: Tilburg, at the Drijflanen nature reserve
• June 7, 1pm-4pm: Almere, at the Weidepoel in the Vroege Vogelbos
• June 15, 11am-2pm: Vondelpark in Amsterdam, at the Kooeienweide

Taking part

You can find a full list of the events on the Ditch Days website. You do not need to register for most of the events, you can just drop by during the operating hours. Materials such as nets and magnifying glasses are provided, but if you want to bring your net and bucket, you can of course do so. It is an interactive activity, so make sure everyone is wearing clothes they don't mind getting dirty!