The Wisdom 2 would be okay for cavern diving, but once you get into cave diving a different computer is probably called for. Most cave divers use wrist mounted computers vs the console computers like the Wisdom. Depending on how much into cave diving you want to get, you can either get something like the Sherwood Profile or Insight, we sell both for about half the price of the Wisdom 2. And both are Nitrox computers. If you plan on getting really serious with cave diving, you will likely be looking at one of the much more expensive computers, in the $1500-2000 range. You're better off waiting to see what's available at that time and going with a less expensive model now.