Located near the O2 Arena in Prague 9, Big Wall is a lead climbers' paradise. The main hall boasts ceilings of up to 20 meters for climbers looking to test their fear of heights. Across 3,000 meters of climbing surface, athletes will find many verticals, including diversified joints, chimneys, and slightly overhanging structures. For those not quite ready for the daunting task of lead climbing, however, Big Wall also offers a few pre-set top rope climbs and a bouldering space of over 300 square meters.