Address and contact

De Helderse Vallei
De Helderse Vallei 9-11
1783 DA Den Helder
telephone +31 (0)223 61 25 55

Suspicious or possibly dangerous situations outside opening hours? Call DEKO Security: +31 (0)653191489 (24 hours a day).

Opening times

  • Monday: closed
  • Tuesday: 10am - 4.30pm
  • Wednesday: 10am - 4.30pm
  • Thursday: 10am - 4.30pm
  • Friday: 10am - 4.30pm
  • Saturday: 10am - 4.30pm
  • Sunday: 10am - 4.30pm


    The coronavirus is not gone. People still get sick. That is why we advise, in line with the national government:

    • Wash your hands often.
    • Cough and sneeze into your elbow.
    • Don't shake hands with anyone.
    • In case of complaints: stay at home.
    • Keep your distance in crowded places.
    • Wear a face mask inside.

    Click here for details from our government.


    • From May 1 to September 30, the grounds and the city farm are open until 5 p.m.
    • The Helderse Vallei is closed on all Mondays, except on Easter Monday and Whit Monday.
    • The Helderse Vallei is closed on King's Day, Christmas Day, Boxing Day, New Year's Eve and New Year's Day.
    • On December 5, De Helderse Vallei closes at 4 p.m.


    Admission to De Helderse Vallei is free-of-charge.


    De Helderse Vallei is located at the Donkere Duinen car park in Den Helder.

    Train and bus
    From Den Helder Central Station, take the line 31 bus to Station Zuid Westzijde. After getting off the bus at the Zandkreekweg/Duinroosstraat bus stop on Jan Verfailleweg, do not walk in the direction taken by the bus as it drives away (it turns off to the left). Follow Jan Verfailleweg towards the beach and the Donkere Duinen woodlands. Cross the road at the next traffic lights and you will see the entrance to De Helderse Vallei on the far side of the Donkere Duinen car park.

    If your navigation system is not up-to-date, enter Den Helder, Jan Verfailleweg 620 as the address. Coming from Alkmaar/Den Oever, take the 'Julianadorp Zuid/(Strand)' exit off the main road (N250/N9). Keep following the road to the right and turn left on Callantsogervaart (follow ‘Strand’ on the signs). At the end, you turn right onto Zanddijk. Follow the road with the dunes and Mariëndal nature reserve on your right and drive into the Donkere Duinen woodland area until you see a turn-off just before the traffic lights. De Helderse Vallei is located on the right-hand side in the large car park.

    There are charging stations for electric bicycles and vehicles in the car park and in the grounds of De Helderse Vallei.

    Chamber of Commerce, VAT and bank account number

    Chamber of Commerce no. 37148552
    IBAN NL30 RABO 0101 4613 21

    De Helderse Vallei has been realized thanks to the European Agricultural Fund for Rural Development: Europe invests in rural areas.