Eight new sculptures came out of the Fourth Sculpture Symposium which was held in the old Champenay quarry in 2010. They are now set up along a 17km-long trail near the “roche solaire” or “sun rock” in the Wisches Forest. This is the fourth and newest trail of this type. The three others include the trail inaugurated in 2007 in the forest of Lutzelhouse and two others in the Oberhaslach and Wangenbourg forests. There are no fewer than 32 sculptures to be seen along this itinerary of 40km in total length.