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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. The caves are the result of the underground erosion of a limestone hill by the river Lesse. The river forces its way under the hill over a distance of over as the crow flies. The caves have a constant temperature of 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. The entry to the caves is about 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 of the cave and an ending with a cannon shot to demonstrate the cave's acoustic properties. == Gallery == Image:Gouffre de Belvaux Luc Viatour.JPG|The ''Gouffre de Belvaux'', where the Lesse goes underground Image:Grotten van Han - grot 1.jpg|Inside one of the chambers Image:00 Han-sur-Lesse - Tram 2.JPG|Access to the caves is only possible with this historic streetcar Image:Grotten van Han - uitgang.jpg|The exit of the caves 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Caves of Han-sur-Lesse」の詳細全文を読む スポンサード リンク
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