Touring the ruien in Antwerp, Belgium

Stuart Forster visits the underground ruien in Antwerp, Belgium, canals which count as the city’s largest historic monument.

I’ve pulled on a disposable overall, I’m holding a torch and have a camera slung around my neck. If it wasn’t for my floppy black wellies you might take me for a crime scene investigator. The kit is compulsory for tours of Antwerp’s underground canals, the ruien as they are known here.

“Sometimes it’s a little bit dirty. That’s why you have the protection suit. The entry price includes the suit. If it’s still okay afterwards you can take it home with you. A lot of people do; you can use it for painting and things,” explains Rick Philips, my guide, at the entrance to the Ruihaus at Suikerrui 21, the starting point for tours.

Going underground in Antwerp

Like most visitors to Antwerp, I had no idea that the city was once characterised by an 8km (5 mile) network of urban waterways, much as Bruges or Amsterdam are today. The ruien are one of Flanders’ largest historic monuments.

If you’re up on the surface, the width of a street is one of the best indicators that water flows below; many of the broader streets have canals underneath. If a street name features the word ‘brugge,’ Dutch for bridge, that’s also a good indicator it was built over a waterway.

Ruien tours were held by boat in 1964 and 1965, when the subterranean canals carried waste water. Consequently, they whiffed a bit and the popularity of tours soon waned. Forty years later, following improvements to the quality of water, the ruien were again opened to the public. The smell is a tad stagnant and dank but by no means repugnant; sewerage runs along enclosed pipes. The water we’ll see comes from the likes of dishwashers, showers and, on rainy days, gutters.

Giving me the wellies

Water levels rise up to 30 centimetres during rainstorms. Children’s wellies aren’t that high, so these tours are only for adults.

Rick is passionate about guiding and history. We’ve been chatting about Antwerp’s significance in medieval Europe, when, after Paris, it was the second largest city north of the Alps. He explains our tour will last two hours and there’s a slim possibility we may need to leave the ruien at short notice should the local water authority need to shift stock along the canals. He carries a walkie-talkie and mobile phone, just in case.

As we enter the ruien via a lockable gate Rick explains that the canals, most dating from the 16th century, are constructed of brick and stone. From the late 1500s to 1885 they were enclosed. Non-corroding, ceramic street signs mark their names.

An underground boat trip

For the first 300 metres, where the water is at its deepest, we take a boat. It has 15 seats; the upper limit on participation in these tours. Throughout the remainder of the tour we’ll walk. Rick warns me to follow his line as each tunnel has a 15 to 50 centimetre deep drainage channel running along it. I nod. I wouldn’t want to stumble.

I ask if we’ll see rats. Rick looks at me. “Sometimes we see one, sometimes a hundred. We are going into their habitat and have to accept they will be there,” he answers calmly and adds we’ll also see rare black and brown spiders.

Subterranean wildlife and history

We walk by what appears to be a huge chimney bringing fresh air underground then a couple of locks. Rick shines his torch up at the ceiling. “We have something like 200 different types of vault,” he says , “some are nine metres wide and six high and there are spots no wider than three metres by two.” Locals living by canals led the initiative to enclose them. The materials – including brick, sandstone and bluestone – reflected people’s wealth.

Antwerp’s first canal was the moat that once flowed around the city walls. “Paris, London, Vienna and Prague have huge underground sewerage systems that look like this in red brick but they are nineteenth century. In Antwerp these are medieval vaults that had another function and then became a sewerage system; that is quite unique,” says Rick as we plodge ankle deep in water then pause as a tram thunders above us.

Rubens and the Carolus Borromeuskerk

“The Jesuits had an exit-entrance here,” explains Rick pointing to a well-crafted section of underground sandstone. We’re standing below the Carolus Borromeuskerk, the church once renowned for ceiling panels painted by Rubens. “We don’t know why. Some say it was to flee if there were problems with the Protestant minority. But the Jesuits came with the Spanish and the city was made Catholic in just four years. Some people say it was because the monks and priests went on small ships to the north of the city, the Schipperke, which has been the red light district for centuries.”

“What we do know is that in World War One, when Antwerp was occupied by Germans, English goods were smuggled under the city and given to the population via this church. It was changed into this brick wall in 1934,” he adds, pointing.

A Jewish escape route?

“People also say the ruien were used to help our Jewish population escape during World War Two but there’s no real proof.” During their second occupation the Germans closed and guarded possible entry points to the ruien.

We come to an underground exhibition on the canals’ enclosure and waterborne infections such as measles and typhus. I read how 2961 people died during Antwerp 1866 cholera epidemic, resulting in calls for all of the city’s open waterways to be covered.

A chapel below the city

As the tour draws to a close, at Burggracht, Rick leads us to an underground chapel housing the statue of a saint. Workers once prayed here for protection against problems such as methane explosions.

I decide to reflect on the fascinating tour with a beer in Paters Vaetje, a bar recommended by Rick as we passed below.

Further information

For more on touring the underground canals see the Visit Antwerp website.

Visit Flanders has more on attractions in Antwerp and the surrounding region of Belgium.

Photos illustrating this post are by Why Eye Photography.

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Guide Rick Philips by a map of the 'ruien' the underground canal system in Antwerp, Belgium. Photo by Stuart Forster.
Rick by a map of Antwerp’s underground canal. 

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