From the 27th to the 28th of June 2009, there were organized Demo Days at the Hancza Lake in Poland at the Diving Base Submariner owned by Robert Kalchert. This was another opportunity to test out DUI equipment. Every diver could try out drysuits, models like: TLS 350, CF 200 X, CN SE. The newest undergarments XM 450, BtS Heating Systems, Stage, Cylinders, OMS equipment as well as other accessories that are needed to dive. The whole equipment was lent free of charge!