Saturday September 28th Maeslant storm surge barrier and Hartel barrier (together named Europoort barrier) close their gates during the annual test closing. The Keringhuis is open for visitors the whole day and organizes tours of the site and various activities for children. Representatives of the Water board of Delfland and Province of South Holland are also present.

Ready for storm season

The annual test closing marks that Rijkswaterstaat is ready for the coming storm season. The Europoort barrier protects 1,5 million inhabitants of Rotterdam and the surrounding area from storm floods from seaside. The test closing is meant to show possible technical or operational problems, so these can be worked out before the storm season starts (October 1st – April 15th). The start of the test closing is expected at 17.00. The time can still change under the influence of natural circumstances. The test closing is a public event. 

Tours of the site - Book your tour online!

The whole day you can join in a tour of the site. Extra English tours and a German Tour are available on September 28th. We recommend that you make your reservation before September 28th. Full = Full.
Price: 5,- per adult and 2,50 per child.
Duration: 70 minutes.
Book your tour here


The Keringhuis is September 28th not accessible by car. You will be guided to parkings in the surrounding area. From here, you can take a free bus to the Keringhuis. Busses will also pick you up from the railway station in Hoek van Holland. Please remember to take an extra 15 minutes on your travelling schedule this day to reach the Keringhuis.

Practical information Saterday September 28th

  • The Keringhuis is open for visitors from 11.00 to 19.00.
  • Start time of test closing expected at 17.00.
  • Tours and activities from 11.00 to 19.00.
  • Free busses from parking areas nearby and railway station Hoek van Holland Haven to the Keringhuis and back from 11.00 to 19.00
  • Various snacks available at the site.


Maeslantkeringweg 139
3151 ZZ Hoek van Holland
Tel: 088-7970630

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maandag t/m vrijdag
10.00 - 16.00 uur
zaterdag, zondag en feest­dagen
11.00 - 17.00 uur
gesloten op 1 jan., 25 dec. en 31 dec.