The Caves of Han-sur-Lesse (in French: Grottes de Han-sur-Lesse or simply Grottes de Han) are a major Belgian tourist attraction (around half a million visitors per year) located on the outskirts of the village of Han-sur-Lesse. Tourism in Belgium is one of Belgium 's industries and its accessibility from elsewhere in Europe still makes it a popular tourist destination Han-sur-Lesse (ɑ̃syʀˈlɛs in Walloon: Han-so-Lesse) is a village in the municipality of Rochefort, Namur Province, Belgium.
The caves are the result of the underground erosion of a limestone hill by the river Lesse. Erosion is the carrying away or displacement of solids ( Sediment, Soil, rock and other particles usually by the agents of currents such as wind Limestone is a Sedimentary rock composed largely of the Mineral Calcite ( Calcium carbonate: CaCO3 The Lesse is a River in the Ardennes in Belgium. It is a right tributary to the river Meuse. The river forces its way under the hill over a distance of over one kilometer as the crow flies. The caves have a constant temperature of 13°C (55°F) and a high level of humidity. Access is only possible via a vintage streetcar, a remnant of the country's once extensive vicinal tramway system, which departs from the center of Han-sur-Lesse. A tram, tramcar, trolley, trolley car, or streetcar is a railborne vehicle, of lighter weight and construction than a Train The Tramways vicinaux or Buurtspoorwegen were a system of narrow gauge tramways or local Railways in Belgium, which covered the whole The entry to the caves is about 2 km from the village. The guided tour takes about an hour to an hour and a half and includes a sound and light show in one of the largest chambers and a short boat ride ending with a cannon shot to demonstrate the cave's acoustic properties. Son et lumière ( French, lit " Sound and Light " or a sound and light show is a form of nighttime Entertainment that is Acoustics is the interdisciplinary science that deals with the study of Sound, Ultrasound and Infrasound (all mechanical waves in gases liquids and solids
Gallery
 The Gouffre de Belvaux, where the Lesse goes underground |
 Inside one of the chambers |
 Access to the caves is only possible with this historic streetcar |
 The exit of the caves, for which a short underground boat ride is necessary |
External links
The Lesse is a River in the Ardennes in Belgium. It is a right tributary to the river Meuse. A tram, tramcar, trolley, trolley car, or streetcar is a railborne vehicle, of lighter weight and construction than a TrainDapyx Software network: MP3 Explorer | Ebook Manager | Zenithic