Its basically shaped like a bowl to about 25' with a sand bottom until you get to the middle in which case the limestone drops almost straight down to about 50' where the main cavern entrance is located. There is a tree that crosses over the top of the limestone drop-off. There is also a smaller cavern opening at about 40' that goes in maybe 20', the entrance is clear of debri now making it easier to access. There wasn't as much flow as normal into the main cavern, so you could enter it with just a steady kick. Inside the main cavern, at about 90', you can find a restriction with alotta flow that you can supposedly penetrate with sidemounts - seems hard to believe, its a tight squeeze, but jviehe has pics of someone halfway in(yikes!). Inside the main cavern, visibility is wall-to-wall. The headpool visibility was limited to about 20' due to the water level rising, it was a bit milky with some particle in the water as well.