Cave & scuba springs

Florida's springs are the entrance to the Floridan Aquifer, and for divers that means access to some of the longest surveyed underwater cave systems in the world. The Santa Fe and Suwannee river basins in North Florida hold the densest concentration: Ginnie Springs, Peacock Springs, Madison Blue, and the Devil's system draw cave divers from every continent. Central Florida adds Blue Grotto and Devil's Den near Williston, both privately run dive parks with platforms, stairs, and training-friendly depths.

The distinction that matters is cavern versus cave. A cavern dive stays within the daylight zone and within a set distance of the entrance; open-water certification plus a cavern briefing is enough at parks that allow it. A cave dive passes the daylight zone into the overhead environment, and Florida parks enforce full cave certification, a guideline reel, redundant lights, and the rule of thirds on gas. Several springs have memorial signs at the cavern entrance for a reason.

Dive-park springs charge a per-diver fee that is separate from swimmer admission and usually includes air fills or has a fill station on site. State parks that permit diving typically require you to check in with a certification card and sign a release. Visibility is measured in hundreds of feet in a normal year but drops sharply after heavy rain when the river backs up into the spring, so the profiles note which sites are prone to tannic intrusion.

Each spring profile linked above lists dive fees, certification requirements, maximum depths, and whether the site is a dedicated dive park or a multi-use swimming spring with a dive zone.