Hotton is a Walloon municipality of Belgium located in the province of Luxembourg. Hotton is known for its speleothem caves, known as the Caves of Hotton. The Caves of Hotton are speleothem caves near Hotton in Belgium, which were discovered in 1958 and are around 5 or 6 km long and 70 metres deep. A stream called Syphon runs at the bottom of the caves.

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• E-mail info@grottesdehotton.com
• Adress chemin du Spéléoclub de Belgique 1, 6990 Hotton
• Website http://www.grottesdehotton.com