Unfortunately, I'm not cavern certified yet. For Ginnie Cavern and the Ear, the caverns are pretty straightforward and can be dived without a light (Ginnie Cavern is huge, has a permanent guideline, and the cave entrance has a closed metal grate. Devil's Ear has a small anteroom and a large warning sign at the entrance to the cave.) I can certainly dive both of them with you. I'm not so sure about the conditions at Devil's Eye. I've only been down there once and didn't go too far, as I wasn't sure if the cave entrance was marked. Little Devil, on the same run as the Ear and the Eye is also a nice little dive. Straight down into a vent, with a great view upward. I'm planning to do all of these, though I'm pretty careful to stay within the boundries of my training.
-Grier