Underground Rotterdam

Dutch Tunnels and Holes

International Underground

The best underground places aren't found in Rotterdam and not even in The Netherlands. They are in Belgium and Germany. Let's start with the best ones here:

The soil of Holland does not lend itself to tunneling. Each hole you make in the ground fills with water. The ground is soft and wet, like a sponge. This makes tunneling very difficult and expensive. Any large tunnel that is made under these conditions is expensive and vital. Therefore the tunnels are all very well protected with camera's alarms etc.

The big Rotterdam Tunnels: Metro, Train, Car and Cable	Unexpectedly we were able to enter the Calandtunnel and we had a nice finale with a sleeping explorer in the car. The first Metro tunnel expedition - From Marconiplein to Schiedam The second Metro tunnel expedition - How I cut my arm, the scar is still faintly visible a year later ... The inaccesible Metro - I haven't been inside yet, but others were The impossible Train tunnel - the first 50m have been entered - see the pictures here The old Benelux Car tunnel - A rather dangerous exploit by Ben and Tomas The new Benelux Car tunnel - How we set off the alarm and how I was questioned by the police The secret cable tunnel The discovery and reconnaisance of the new high speed link tunnel: HSL North 1, HSL North 2, HSL North 3. The discovery and reconnaisance of the south branch of the HSL tunnel: HSL South 1, HSL South 2.
College tunnels	Maybe the smallest and shortest college tunnels in the world
Bridges and bridge rooms	Under the Bridges - in the center of the city Inside the Dintehaven bridge
Bunkers	First group expo to the bunkers German Bunkers of the Atlantikwall

Drains in Germany	Drain under Trechtinghausen - My first drain ever - I was so happy! More German drains and tunnels along the Rhine - More of the nice scenery and tunnels
Underground Prague	I walked (almost) all the rest of the Botic stream and found a lot of tunnels and drains. The Botic (1) A small stream that sometimes t runs underground. Here. Cerny Most - The first drain we discovered in Prague. Here.
Underground Belgium	Infiltration of the city hall and the deserted metro of Charleroi Luik expedition (1) - The fortress underground - just 3 pictures - more to come Luik expedition (2) - The fortress above ground - La Chartreuse - with pictures Luik expedition (3) - The mine underground - Le Hasard / Cheratte - with pictures