Ichetucknee Blue Hole is a deep spring vent located 800 metres from the shore. This site features a powerful upwelling current and an overhead environment, making it suitable for advanced divers. The water maintains a constant temperature of 22°C year-round, with visibility ranging from 15 to 30 metres. Access is via a shore entry following a short hike through the forest. The site reaches depths of 9 to 12 metres, with an average depth of 11 metres. Due to the strong current and deep overhead environment, divers should be prepared for challenging conditions. The site is also highly rated for snorkelling.

The Ballroom is a freshwater cavern and cave system located in the Nature Coast region of the United States. Divers access the site via the shore, entering a space that ranges from 4 to 15 metres in depth, with an average of 12 metres. The site features mild currents and visibility typically between 15 and 30 metres. It is suitable for beginners and supports night diving, with a typical dive duration of 50 minutes. Species recorded around this area include longnose gar, redbreast sunfish, blue gill, large mouth bass, perch, livebearer, mullet, snail, pike, and redear sunfish. On-site facilities include parking, toilets, showers, changing rooms, a rinse station, air fills, and equipment rental.

Ginnie Ballroom is a freshwater cavern and cave site located within the Devil’s Spring System. Divers and snorkellers access the site via a shore entry, experiencing depths ranging from 5 to 15 metres with an average of 10 metres. The site features high visibility of up to 60 metres, though conditions include moderate currents, cold water, and an overhead environment. The area is suitable for beginners, with typical dives lasting 20 minutes. Species recorded around this area include longnose gar, redbreast sunfish, blue gill, large mouth bass, perch, livebearer, mullet, snail, pike, and redear sunfish. Facilities include parking, toilets, showers, changing rooms, air fills, equipment rental, a dive shop, and a cafe.

Ginnie Springs is a freshwater spring system located on the Santa Fe River, offering visibility between 30 and 60 metres. The site features a mix of open cavern areas and a cave network, with depths ranging from 5 to 18 metres and an average depth of 10 metres. Divers experience a moderate current, creating a drift-like environment in the open sections. The water temperature remains a constant 22°C year-round. Open-water divers are restricted to the natural light zone of the cavern, while full cave entry requires specific certification. Facilities include parking, air fills, showers, and changing rooms, supporting multiple dives throughout the day. Night diving is permitted at this location.

Gilchrist Blue Springs is a second-magnitude spring located in Florida. The site features a shallow spring run with eelgrass and a constant water temperature of 22°C year-round. Divers and snorkellers can expect visibility ranging from 15 to 25 metres. The site is accessible via shore entry and is suitable for beginners, with depths typically between 1 and 7 metres, averaging 4 metres. Typical dives last around 45 minutes. Facilities available on-site include parking, toilets, showers, changing rooms, equipment rental, and a cafe. Be aware of potential hazards including deep areas and down currents.

Little River is a Florida spring cave and reef system offering visibility between 30 and 50 metres. Divers encounter depths ranging from 15 to 30 metres within an overhead environment that requires advanced technical skills. The site is characterised by strong currents, necessitating precise buoyancy control and awareness of flow direction. Shore entry requires caution due to potential surf and sharp rocks. Facilities include parking, toilets, showers, changing rooms, and a rinse station. Due to the complex cave structure, cavern certification is the minimum requirement, though a full cave rating is strongly recommended for overhead penetration. The habitat supports various reef fish and invertebrates typical of the region.

Troy Springs is a freshwater spring system in Florida featuring a 19th-century wooden steamboat wreck resting at a depth of 24 metres. The site offers visibility between 15 and 30 metres, allowing divers to view the hull structure before descending. While the site is accessible via a straightforward shore entry, it presents overhead environments including caves and the wreck itself. Divers should be prepared for depths averaging 20 metres and mild currents that can shift. Facilities at the site include parking, toilets, and showers. Due to the overhead nature of the wreck and cave features, advanced training is recommended for those planning to explore these specific areas.

Troy Spring is a first-magnitude spring featuring the remains of the Civil War-era steamboat Madison, which was scuttled in 1863. The site offers both diving and snorkelling opportunities with depths ranging from 2 to 18 metres, averaging 15 metres. Entry is via the shore. Conditions include mild currents and visibility between 6 and 21 metres. Divers and snorkellers should be aware of hazards including cold water, depth, and the wreck structure itself. The site is suitable for beginners and provides a distinct historical experience within the spring run.