Survivor

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MrsCyclops is much better today but she's still not diving, and I've started a training course so I'm not taking my camera underwater with me.

This is my first "technical" diving course, "Advanced Nitrox and Decompression Procedures". There's little new in the theory, but the equipment I'm using is very different from recreational dives. Instead of a single 12 or 15 litre cylinder on my back, I have a "twinset" consisting of two 12 litre cylinders. I also have another 12 litre cylinder clipped on my side as a "stage" containing gas for decompression. It's actually easier than I expected, but there are still plenty of new skills to learn in this rig.