From what I have read about this system, there is usually bad visibility and strong flow. In May 2013, the current was manageable and visibility a lot better than expected and the cavern zone at Catfish Hotel Sink was absolutely amazing. We made it from Catfish to Sue Sink with lots of gas still left, but turned around as we did not expect to get that far. We also swam and freedived at the Manatee Spring proper which was a good way to cool and wash off the duck weed. We need to come back in the winter to get a chance to see the manatees as well.
May 2013 shots
Cave upstream from Sue Sink back to Catfish