Block'Out Évry on Clmb House. Venue in Parc Valad de la Petite Montagne Sud, 20-22 Rue du Cantal, 91090 Lisses, France, France. Block'Out Évry in Lisses is a 1,350 m² bouldering venue with 750 m² of climbing in an air-conditioned room, 35 wall profiles and about 175 problems over 14 l...