Folsom Lake is a freshwater site offering both shore and boat access for divers and snorkellers. The topography features depths ranging from 2 to 30 metres, with an average depth of 10 metres. Conditions include mild currents and visibility between 3 and 9 metres. Divers should be aware of steep thermoclines, as temperatures drop significantly below 5 to 6 metres. Hazards include deep water, potential entanglement, low visibility, and strong currents. The site is suitable for beginners, with typical dives lasting around 70 minutes. The habitat supports various temperate freshwater fish and invertebrates. Facilities at the site include parking, toilets, and showers.

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.