Bernistap Tunnel, Canal tunnel in Houffalize, Belgium.
Bernistap Tunnel is a canal passage stretching roughly 430 meters through the Belgium-Luxembourg border region and measuring about 3.5 meters across. The structure features carefully built stone vaults supporting the waterway system.
Construction began in 1828 under King William I to link the Meuse and Moselle river systems but stopped in 1830 following Belgian independence.
The tunnel demonstrates early 19th-century engineering craftsmanship linking two major river basins. Its stone vault construction reveals the technical knowledge of builders from that era.
A marked walking trail follows the former towpath around the tunnel area but does not provide entry to the underground passage. The easiest time to explore is during mild weather when pathways are comfortable to walk.
The tunnel received recognition as exceptional heritage in Wallonia in 2009 and belongs to the European Natura 2000 ecological network. This dual classification highlights its value for both industrial history and nature conservation.
The community of curious travelers
AroundUs brings together thousands of curated places, local tips, and hidden gems, enriched daily by 60,000 contributors worldwide.
