Each year for 20 years now enthusiastic cavers meet for the scientific aspects of speleology in Han-sur-Lesse for a weekend of meetings, presentations and discussions.
The scientific meeting is mainly dedicated to Belgian karst and neighboring regions, as well as to the Belgian achievements abroad.
The meeting is accessible for all and is intended to be an opportunity for cavers, scientists or merely curious to inquire or submit new observations or discoveries.
On Saturday, in the morning, there is a conference by Christophe Gauchon from the laboratory EDYTEM of the University of Savoie, France on the use of karst by man.
Sunday a field trip. The phenomena of phantomisation. Quarry of Clipot in Gauthier-Whincz. Visit commented by Yves Quinif of the University of Mons.