Visitor Centre

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


  • Due to the coronavirus crisis, note that special guidelines currently apply in the grounds and in the buildings. Click here for details.
  • From 1 May to 30 September, the grounds and the city farm are open until 5pm.
  • De Helderse Vallei is also open on Mondays during the school holiday period for the Northern zone of the Netherlands.
  • De Helderse Vallei is closed on King’s Day, Christmas Day, New Year's Eve and New Year's Day.
    On Boxing Day, De Helderse Vallei is open in the afternoon from noon to 4pm. On 5 December, De Helderse Vallei closes at 4pm.


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. In the high season, the 'kustbus' (coastal bus) takes the scenic route past De Helderse Vallei. You can view the timetable here:

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

Contact form

Are you using this form to register for the waiting list for an activity? If so, please also state the name of the activity, the name(s) and age(s) of the participants and your phone number. After you submit the form, we will contact you within 48 hours. If you have not received a response from us within this period, please contact us by telephone on +31 (0)223 612 555.

De Helderse Vallei processes your personal details in order to keep track of the number of participants and/or to be able to contact you by telephone or in writing (by email or post) if necessary. No personal data will be disclosed to third parties unless explicitly required for the activity. If applicable, this is always mentioned separately. De Helderse Vallei will delete your personal data no later than 2 weeks after the activity or request.


* is a required field

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