It was set up in the communal woods in 1914. The topography of the site consists of a plateau rising to an altitude of 420 metres, with a slight gradient of around 5% to the north-west. Over a total area of 4 ha 70 a, visitors can discover no fewer than 81 species, including 46 resinous trees, originating from temperate Europe, North America and South-East Asia. The age, quality and diversity of the woody material, as well as the star-shaped layout of its paths, give it a very high aesthetic value. The arboretum can be reached by heading towards the Chapelle Sainte-Barbe and the Château des Fées. The arboretum is located on the B1 and B2 walks shown on the IGN map entitled "Bertrix-Herbeumont". (Text source: Si de Bertrix Semois)