There's some stuff on Andros as well
I dived Guardian Cave in Andros, but there was a problem with that which may present itself in other caves there. The cave was explored by--guess who?--Brian Kakuk, and if you want to do it as a serious dive, you have to pay for Brian to come in from Abaco and guide it. In order for me to do it, I had to use a guide from Small Hope Bay, and that guide was only allowed to used single tanks (with H-valves). We had a very specific limit to distance. Once we reached a specified location, we had to turn back, regardless of gas. It had nothing to do with my certification--it was all about the guide's level of training.
The cave itself was very different from most caves. It began its life as a fracture in the rock structure caused by earth movement. That makes its inner structure very different from what most people are used to. The guideline going in had fine sediment and algae hanging off of it, a sign that no one had passed by in a long time.