Shangri-La Springs is a freshwater cavern and cave system located in Northwest Florida. The site features an overhead environment with depths ranging from 5 to 18 metres, averaging 6 metres. Visibility varies between 10 and 30 metres. Access is exclusively by boat, located 2414 metres from shore. The site lacks current, placing the focus on buoyancy control and fin technique. Due to the overhead environment and significant depth, divers must possess appropriate certifications to enter specific zones. Water temperatures remain cold year-round, making adequate exposure protection essential for all divers. Be aware of boat traffic in the vicinity and manage exposure to cold water throughout the 40-minute dive.

Jackson Blue is a freshwater spring in the United States featuring a cave entrance and a spring basin reaching depths of 15 to 20 metres. Divers experience visibility ranging from 10 to 30 metres, supported by a mild current flowing from the spring vent. The site is accessible via shore entry and offers full facilities including parking, toilets, showers, and a dive shop. While the environment supports general freshwater flora and fauna, the primary focus is the overhead cave system. Open Water divers should remain within the cavern zone where natural light is visible. Proper buoyancy control and equipment management are essential to mitigate entanglement risks within the overhead environment.