Plants, butterflies and arboretum in Liège

Guided visit (Fr/Ned) to the Observatoire de Monde des Plantes and visit to the butterflies (live + expo) at the Université de Liege. Afternoon walk through the arboretum of Sart Tilman. Carpooling at 9:30 AM at Trudosporthal in Sint-Truiden. Meeting on site at 11 AM (Chemin de la ferme 1b, Sart-Tilman, Liege). Lunch to be provided by yourself.