PrehistoHan New exhibition: 50 years of excavation in the waters of the Lesse This year PrehistoHan is highlighting the underwater excavations carried out on the bed of the Lesse and at the exit from the Cave of Han. Films, models and photos take you down with the divers, into the murky waters of the river, to the discovery of one of Belgium’s most fabulous archaeological treasures. It’s an adventure that started 50 years ago! Come and discover these exceptional items in an attractive, interactive and fun presentation. The exhibition also includes a section dedicated to the natural sciences: geology, the formation of the caves and concretions and cave fauna. Lastly, accompanied by Laura Craft, join in the archaeological excavations in the Cave of Han as if you were there! In the interactive cinema, put on your 3D glasses, grab your joystick and set off on an exploration of the secret galleries of the Cave of Han and its treasures.