As always this will depend on your starting point. You can star by taking a Cavern Diver Course utilising recreational equipment. The caveat to this is if you plan to progress your training further by taking the Intro to Cave course. Then we would recommend taking the cavern course in a redundant configuration – backmount or sidemount independant cylinders and regulators. If you are taking a Cavern and Intro to Cave course combination, then use of a redundant configuration is mandatory.
If you are not familiar diving in this technical configuration, we would recommend taking an intro to tec or entry level technical course prior to starting any cave diver training. If you already have this level of certification, then you are ready to start.