EINSTEIGER KURSE   Poseidon "Discovery" MKVl:       The beginner course for the Poseidon „Discovery“ MKVI takes 4 days, during which you will learn all the necessary skills and theory to dive this unit safely within recreational diving limits, up to a depth of 40 m without decompression, using air a s a diluent.  If you would like to make use of one of the Rebreather Pool units, a valid certification for the Poseidon MKVI is necessary.       Prerequisites for taking part in the Poseidon „Discovery“ MKVI course: 30+ logged  dives, Advanced Open Water Diver Certification or equivalent, Nitrox 40% certification, recent medical statement     Evolution/ Inspiration:       The A.P. Evolution/ Inspiration User course takes 5 days. One of the prerequisites for participating in this course would be  the Advanced Nitrox or Advanced Recreational Trimix certification, which can be taken in conjunction with this course in a special combination course. With the Advanced Nitrox certification, the depth would be limited to 42m, with Advanced Recreational Trimix, the depth would be limited to 48m, with an END of 24m. A maximum decompression of 15 minutes is allowed.       Prerequisites for taking part in the A.P. Evolution/ Inspiration course: 30+ logged  dives, Advanced Open Water Diver Certification or equivalent, Advanced Nitrox certification, recent medical statement .     rEvo:       The rEvo User course would also take 5 days, with Advanced Nitrox certification being one of the prerequisites. Of course, it can be taken in conjunction with the User course in a special combination course. The depth limit after successful completion of the course would be 42 m  with air as a diluent, and a maximum decompression time of 15 minutes.       Prerequisites for participating in the rEvo course: 30+ logged  dives, Advanced Open Water Diver Certification or equivalent, Advanced Nitrox certification, recent medical statement .     Recreational Rebreather course (Poseidon/Evolution):       For those of you, who would just occasionally enjoy „bubble-free“ diving, and are not prepared to invest the time and money in a full user course or would like to take advantage of the rebreather for underwater photography, there is an alternative. The Recreational Rebreather course is a three day course, teaching you the essentials of rebreather diving without ever leaving recreational diving limits.       The usual run of the course would be like this:       During the first day, you will go through some basic theory. Afterwards, your instructor will teach you how to assemble your unit. Once you understand how the rebreather works, it is time to gather your first experiences, diving the rebreather in calm, shallow waters.       On the second day, you will already assemble the unit yourself, under the supervision of your instructor, before doing two dives, during which you will get to know the unit even better, getting a feel for it, and enjoying the soothing silence the rebreather exudes. Of course, you will also go through some of the most important basic safety and emergency skills, which your instructor will demonstrate for you.       On the third and last day of the course, you will assemble your unit yourself, before carrying out two more fascinating dives. After having completed successfully all the theory and skills, you will be certified as an Open Water Rebreather diver.       Prerequisites for participating in this rebreather course: PADI AOWD or equivalent qualification Nitrox-Diver       After successful completion of the course, you will be entitled to dive the unit you trained on to a maximum depth of 21m. If supervised by an instructor, you will be able to go to a maximum depth of 30 m, staying within the limits of recreational diving.