Yesterday went well. We got home around 9pm. Travel times were a little longer than normal due to the weather. The park only had maybe 20 fisherman the whole day. As far as diving, Chad and I were the only ones. Water Temp was 50* and vis was unlimited. Could see as far as your light would shine. Also tons of fish! I really enjoyed it for something different. Our only problem was when an old fishing lure snagged my drysuit on the very first dive, consequently flooding half of my suit by the dives end. Luckily the general store just outside the park had Aquaseal for repairing fishing waders. While the patch was drying, my undergarmets hung in front of the kerosene heater and dried significantly. All was well and dry on the latter dives. All in all it was a great day and a neat dive site. While it is pretty much a benign cavern as Cummins said, I can see some divers not liking it only because the deeper you go, the lower the ceiling gets. I probably would not recommend this to anyone with clausterphobia issues. I supposed they could still dive it just not venture much into the cavern. They will surely not see that kind of visibility too many places in the midwest.