EXTREM Kletterzentrum Ludwigshafen on Clmb House. Venue in Saarburger Str. 25, 67071 Ludwigshafen am Rhein, Germany, Germany. EXTREM in Ludwigshafen is the larger of the two EXTREM climbing centres (the other is in Mannheim), with over 1,850 m² of climbing surface, more than 200 rou...