http://geoservices.wallonie.be/arcgis/rest/services/TOURISME/MASSIFS_FORESTIERS/MapServer
http://geoservices.wallonie.be/arcgis/rest/services/TOURISME/MDT/MapServer
http://geoservices.wallonie.be/arcgis/rest/services/TOURISME/OFFRES_TOURISTIQUES/MapServer