If you have Deloach's book, it provides some more info, the
state park website really only gives general info about any of the parks.
Trip report 1 report 2 should give some highlights to the site and the
layout of the spring once you go in the hole. You cant take lights in unless cavern (or higher) cert'd, "OW" technically disappears at 65ft or so, but you can still see from the overhead sun at ~80-85ft, beyond that is pitch black. There is a strong upward current and most people find they have to wear 2-4# extra on top of their normal fresh water weight, which is approx 4-6# lower than your salt water weighting. If you dont have a little extra weight you will find it hard to even get down, no matter stay down
Its a fun dive, there are "ribs" or shelves that you can go into, some drop through sections, some small dead end daylight illuminated mini-rooms you can poke into. Then once you have done the dives and held your stop around the logs that cross the entrance you can drift off down the river to shorten the hike back to the car.
BTW, you might have to quickly skip through most of the stuff on those threads i posted, only certain info is actually pertinant to the actual dive, as with most threads, but there is info in there
See you wednesday.