Catfish Hotel Sink is a freshwater cavern located in Crystal River, United States. This site offers depths ranging from 2 to 8 metres, making it accessible for beginner-level cavern divers. Divers enter from the shore to explore the overhead environment, which requires specific cavern certification. Visibility at the site typically ranges between 10 and 30 metres. The water temperature remains a constant 21 to 22 degrees Celsius year-round. Facilities available at the location include parking, toilets, showers, changing rooms, a rinse station, and an on-site dive shop. Divers should remain aware of potential entanglement risks and disorientation associated with the overhead environment.

Manatee Springs State Park is a first-magnitude spring featuring a deep limestone vent and a 800-foot boardwalk. This site offers both cavern and cave environments with depths ranging from 1 to 18 metres, averaging 10 metres. Divers and snorkellers can expect water temperatures of 22 degrees Celsius year-round. Entry is via the shore, and the site is suitable for beginners. Visibility varies significantly from 3 to 30 metres, and users should be aware of hazards including entanglement, low visibility, overhead environments, and moderate currents. The habitat supports a variety of freshwater fish and invertebrates typical of the region.

Hunter Springs Park in Crystal River is a shore-access site featuring a small beach and a designated roped-off swimming area. It serves as a primary location for snorkelling and diving in the region. The site reaches depths of 1 to 6 metres, with an average depth of 5 metres. Water temperatures remain a constant 22 degrees Celsius year-round due to the natural springs, though seasonal fluctuations in the surrounding area range from 16 to 31 degrees Celsius. Visibility typically varies between 5 and 15 metres. Facilities available on-site include parking, toilets, showers, changing rooms, and a rinse station. Potential hazards at this site include jellyfish, sea urchins, and stonefish.

Hunter Spring is a freshwater spring basin in Crystal River, United States, offering a calm environment for divers. The site features a shallow depth of 4 to 5 metres, making it suitable for beginners to practice buoyancy. Shore entry is straightforward, with on-site facilities including parking, toilets, and changing rooms. Visibility typically ranges from 5 to 15 metres. Divers should remain aware of boat traffic when entering or exiting the water and avoid submerged lines to prevent entanglement. While the aquifer maintains a consistent temperature, deeper pockets can feel cooler, so appropriate thermal protection is recommended. Surface marker buoys are advised due to active vessel movement in the area.

Jurassic Spring in Crystal River is a freshwater spring site offering a shallow diving and snorkelling experience. The site features an average depth of 5 metres, with a range between 4 and 6 metres. Conditions are generally mild, though divers and snorkellers should remain aware of boat traffic in the area. Access to the water is available via both shore and boat entries. The water temperature remains a constant 22 degrees Celsius throughout the year. Equipment rental and dive shop facilities are available nearby to support visitors.