Nature, culture and more

Communication Bunker Post Office Open Monument Days

Next date:

Sat 12 Sep 2026
10:00
-5:00 PM

 

Tags

Discover the Post Office Communication Bunker during Open Monument Day.

Rare bunker with a remarkable history

Behind the old post office at Den Helder, you will find a well-preserved bunker from the Second World War: the Telephone Bunker, also known as the Communication Bunker or Type 616 Groszschaltstelle. This bunker was part of the Atlantic Wall and played a central role in communication around the Den Helder Position.

Only three of this type in the Netherlands

Of this specific bunker type – the 616 – only three remain in the Netherlands. The Helderse variant is particularly special. It is equipped with an attached Tobruk, a machine gun emplacement, and is constructed as a mirror image of the standard design. The Tobruk is accessible via a concrete staircase on the outside.

Virtually intact interior

The interior of the bunker has largely remained in its original state. It was once covered by a camouflage roof, but this was removed after the war. Inside, you get a good idea of how the space functioned at the time.

Exhibition about life in wartime

The Techniek en Militairia Foundation has set up a permanent exhibition in the bunker. Here you can see material from the period 1940–1945, with stories and objects about the daily life of Helderse civilians and soldiers during the war.

Address

Boerhaavestraat 15(next to), Den Helder

Opening hours

Sat September 12. 10:00 AM - 5:00 PM

Sun September 13. 10:00 AM - 5:00 PM

Background information

Type of monument: Defensive structure

Original function: Telephone switching station

Construction period: 1941-1943

Current function: Museum

When

Sat 12 Sep 2026
10:00
-5:00 PM

 

Sun 13 Sep 2026
10:00
-5:00 PM

 

Where

Communicatiebunker Postkantoor
Boerhaavestraat
15
1782 BL
Den Helder

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