By Train:
To reach the camp by train you will need to leave early and will likely have to change trains en-route. Unfortunately, train departures change too frequently for us to keep them up to date here, but you can use the English version of the Polish rail network's website - rozklad.pkp.pl - to plan your route, keeping in mind, obviously, the opening hours of the museum. If you can't catch a direct train, the most convenient route is usually through Legnica and the cost should be somewhere between 20-30zł (less when you get a direct train). Journey time 2.5-3hrs depending if you have to change trains or not.
From Żagań train station take a local bus from the stop in front of the station in the direction of Iłowa or Gozdnica and get off at 'Modernbud'; this puts you 300 metres from the camp. Alternatively, take a bus in the direction of Wesoła getting off at 'Staszica' and you're about the same distance. Bus tickets cost 2zł.
By Bus:
Buses also run from the Wrocław main bus station to Żagań, with a travel time of about 3.5 hours and a cost of about 40zł each way. From the Żagań bus station to the camp, directions are the same as from the train station.