Folsom Lake is a freshwater reservoir offering a sheltered, current-free environment suitable for beginner divers and snorkellers. The site features an artificial reef structure, with depths ranging from 3 to 23 metres and an average depth of 6 metres. Shore entry is straightforward, with parking and showers available for visitors. Visibility typically fluctuates between 3 and 9 metres, often improving during morning hours before boat traffic increases. Divers should be aware of potential entanglement hazards near the reef and a significant thermocline between 4.5 and 6 metres. Proper thermal protection is recommended due to cold water temperatures, and an open water certification is required for diving.

Black Miners Bar, located on the American River, is a freshwater drift dive site suited for intermediate divers. The site features rock formations and requires a 7mm wetsuit to manage cold water temperatures, which typically range between 10 and 15 degrees Celsius. Divers should be prepared for moderate currents and variable visibility, which can fluctuate between 2 and 6 metres. Access is via the shore, and the site provides parking and toilet facilities. Due to the nature of the river environment, divers must remain aware of potential hazards including down currents, entanglement risks, and low visibility conditions.