Hi!
I'll be there Sat as well (not diving, though...a friend is going to show me how to manifold my cylinders together). Feel free to stop by and say "Hi"...look for the short redhead driving a grey Miata.
ABWA is pretty temperate until you hit the thermocline...the first one is at 35 ft or so. Brrrr...I won't dive below 40 ft wet if I can help it
However, lots of other people (who aren't wimps like me) dive wet below the thermocline. My computer recorded a bottom temp of 60 degrees on my last dive (to 110 ft)
There's two sets of docks...the main docks (directly below the dive shop) and a second dock (down the hill to the right of the dive shop). Off the main dock, there's a 4 ft platform, an 8 ft platform, and a 15 ft platform. To the left of the 15 ft platform, you'll find a descent line...that leads to the sailboat, the schoolbus (at about 70 ft) and a weird concrete box (about 80 feet). You can either follow the line back, or follow the quarry wall to some concrete tubes that you can swim through, and then continue to follow the wall back to the platforms.
If you dive off the far docks (the one to the right of the dive shop and bathrooms), there's a 15 foot platform, I think. From the platform, (if the vis isn't trashed) you'll be able to see some of the underwater wreckage sunk for your amusement. There's a couple of firetrucks, a camper, a few boats and a car sunk around that area. The average depth is 30-40 ft. Most of the wreckage is between the two docks, so if you start at one dock and swim to the other, you'll run into most of the underwater wreckage (if memory serves).
The dive shop at ABWA has EAN fills, can rent cylinders (LP77, I think), and the majority of any other gear you might need.
They have copies of a map in the dive shop that can probably do a better job of explaining where everything is than I'm able to
Check out their website
www.divealabama.com for more info...the owners, Wayne and Stephen, are more than happy to answer any questions you might have.
