Neighbouring Kater Blau and Golden Gate on the banks of the Spree near Jannowitzbrücke is the Libertine club. A simple structure in its barrel-vaulted, brick ceilinged, single-room set-up, the club tends to lean toward minimal and straightforward techno music, though electro torchbearer DMX Krew played recently. Not unlike many other Berlin clubs, Libertine makes great use of its location under the S-Bahn tracks to avoid noise complaints. But some parties may last all weekend, leaving enthusiastic dancers mingling with BVG staff on break from the office next door. Tables and bar chairs line the back wall with windows overlooking the Spree as mornings come and go in this nondescript but functioning nightclub.