Logo of City Marketing Den Helder with City by the Sea addition

Open Day

Whether you are looking for cultural festivals, music performances, sporting events, lectures or local markets, there is always something to do in Den Helder! Check out our events calendar to stay up to date on what is happening.
Event  Open Day  Guided tour

Forts Festival activities at Fort Kijkduin

Discover Fort Kijkduin during the national Forts Festival with guided tours, special stories, exhibitions, and feeding presentations.
Sat 5 Sep '26
- Sun 13 Sep '26
  • Fort Kijkduin
    Admiraal Verhuellplein 1, Huisduinen
Event  Open Day

Medemblik Shed 'Helderse Botters' | Open Monument Days

Discover Medemblikkerloods during Open Monument Days
Sat 12 Sep '26
  • Medemblikker Loods
    Willemsoord 63A, Den Helder
Event  Open Day

Crown Bunker | Open Monument Days

Discover the Kroontjesbunker in the dunes of Huisduinen during the Open Monument Days.
Next date:
Sat 12 Sep '26
Sat 12 Sep 2026
10:00
-5:00 PM

 

  • Kroontjesbunker (FL250)
    Duinweg, Den Helder
Event  Open Day

Helders Museum 'Pavilion of the Past' | Open Monument Days

Discover the Helders Museum during Open Monument Days
Next date:
Sat 12 Sep '26
Sat 12 Sep 2026
12:00
-5:00 PM

 

  • Het Helders museum
    Borneolaan 1, Den Helder
Event  Open Day

Bunker Tour Open Monument Days

Discover the Bunker Tour during Open Monument Days.
Sat 12 Sep '26
  • Willemsoord
    Geen data beschikbaar, Den Helder
Event  Open Day

Helderse Odd Fellows | Open Monument Days

Discover the Helderse Odd Fellows during the Open Monument Days
Sat 12 Sep '26
  • Helderse Odd Fellows
    Texelstroomlaan 4, Den Helder
Event  Open Day

Carillon – National Monument for the Rescue Service | Open Monument Days

Discover the Carillon during Open Monument Days
Next date:
Sat 12 Sep '26
Sat 12 Sep 2026
11:00
-4:00 PM

 

  • Het Carillon
    Helden der Zeeplein, Den Helder
Event  Open Day

Screw steamship Zr.Ms. Bonaire | Open Monument Days

Step aboard the former warship Zr.Ms. Bonaire during Open Monument Days.
Next date:
Sat 12 Sep '26
Sat 12 Sep 2026
10:00
-5:00 PM

 

  • Stichting Bonaire
    Willemsoord 47, Den helder
View the full events calendar

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