Galerie d’aérage

Not sure what this tunnel was, it lies underneath an old coal mine, so could have been an ventilation tunnel.

Canal Tunnel

Tunnel, built in the first half of the 19th century to allow shallow barges with coal to be transported. The walkway next …

Drain des Cascatelles

We explored these tunnels carrying a small river under a small town. The variety of shapes, materials and sizes was amazing.

The Fort

A 19th century brick fort, once protecting on of the large cities in Belgium, now home to bats and birds.