The Rebreather Zone, based in Dortmund Germany offers high quality rebreather (CCR) training and technical open circuit scuba training. With training available on 15 different brands of rebreathers, look to us for expert ccr training. We offer recreational rebreather training, technical ccr training, and ccr cave certifications. In addition to our ccr training, we also teach TDI, IANTD and PADI technical open circuit scuba courses.