Contact
As a foundation, we organize activities from the Haerlem Barracks in the fortress of Hellevoetsluis.
Here we have a visitors' room. 
Visiting address:
Plein Fort Haerlem
Hellevoetsluis
Email: [email protected]
Phone : 06 31 25 49 09
Postal address:
Stichting Defensieswerken Hellevoetsluis
P.O. Box 235
3220 AE Hellevoetsluis
The GPS coordinates are:
| 51.82334° N | O4.12704° E | in decimals |
Or | 51°49'24.04" N | 4° 7'37.36" E | in degrees minutes and seconds |
Or | 51°49.4 N | 4°7,622 E | in degrees and minutes, decimal |
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