Rob, we'll be in the Luraville area December 27th and 28th doing OC dives before we start our rebreather class, and we'd be happy to show you around.
Wes Skiles Peacock Springs State Park is near Luraville
Peacock has three main entrances and five more windows. Peacock 1 has an ample amount of shallow cave and deco isn't the norm, unless you're on your second 2 hour dive of the day, or unless you spend a lot of time in the well (90 ft deep). It consists of a shallower side on the Peanut Line and a slightly deeper side on the Olsen line. Peacock III is similar to the Olsen side of P1, averaging about 50-55' in depth, unless you go down the line to Hendleys Castle where it quickly drops to 135' then 190', with a deeper tunnel below at around 210'. Orange Grove starts out about the same along the main line, but shallows out as you head back toward the rest of the system, or of you get off onto the branch lines. You can get down to around 100' in the Lower Orange Grove section of the cavern and down to around 170' on the lower Lower Orange Grove line below the cavern.
Cow Spring is also close by and while the up stream side gets down to around 106' (after shallower sections in the 50' and 70 ranges), the downstream side is around 40' on average.
Madison Blue is farther north, about 10 miles east of Madison, but it also offers plenty of shallow cave in the 50-60' range.
Manatee Springs State Parks is 6 miles west of Chiefland. It is a little deeper at around 70-80 ft, but you can do a fair amount of diving there before you get into deco.
Little River is near Branford and it gets down to around 100' fairly quickly but you can do the areas of the cave around the mud tunnel, short cut, serpentine and merry go round tunnels all the way up to the Florida room with out getting into decompression, or at least not more than a few minutes of deco.
Ginnie Springs is near High Springs and it gets down to around 90', but there is plenty of shallower cave in the front portion of the cave around the gallery, the catacombs, the lips and key hole by passes, and along the main line in those sections. Plus it get shallower along the hill 400 line and on the line to July springs, so there's a lot of diving that can be done with no deco or not more than 5 minutes of deco. We'll usually take O2 along, but if we've got 5 minutes or less of deco on back gas, we won't bother using it, and that's the norm for a first dive of the day with reasonable sized tanks and no stage.
Jug Hole is located in Ichetucknee State Park. It's a smallish cave with a bit of a restriction a hundred feet in before getting into the good bits, but it's a great\ dive and is fairly shallow on average. You'd have to work at it to get into deco there.
Those are the major touristy caves in the area and make for a good introduction to N FL cave diving.