I've dove Rainbow River, Devil's Den, and Blue Grotto.... All excellent dives regardless of ground water runoff. The water is simply always clear. I plan to volunteer to dive the Rainbow River clean up in 2009 and will update with details for when this will take place. The next springs dive for me will probably be Troy spring near the Suwannee River. It's 70 feet deep, and a big open bowl. At the mouth, where it feeds the Suwannee is a wreck of an old paddle wheeler.