Round Valley is a freshwater site featuring artificial reefs and underwater training platforms. Divers and snorkellers access the water from the rocky shoreline, which transitions into a silty bottom. The site reaches depths between 6 and 18 metres, with an average depth of 7 metres. Visibility varies between 3 and 9 metres. Water temperatures can reach the high 70s Fahrenheit later in the season, though a thermocline exists below 30 feet where temperatures drop significantly. Common species observed here include Redbreast Sunfish, Blue Gill, snails, and Green Sunfish. Less frequently, divers may encounter Banded Killifish, Common Perch, Small Mouth Bass, Brown Bullhead, and Rock Bass. Hazards include boat traffic, cold water, and low visibility.

Wilderness Campground Shoreline at Dutch Springs offers a freshwater diving experience featuring grass beds and rocky outcrops. Divers and snorkellers can explore depths ranging from 1 to 10 metres, with an average depth of 5 metres. Access is available via both shore and boat, though the site is located 4800 metres from the shore. Conditions include mild currents and visibility typically between 3 and 9 metres. Water temperatures can reach the high 20s Celsius later in the season, though a thermocline exists at approximately 9 metres, below which temperatures are significantly colder. Hazards include cold water, depth, entanglement risks, and low visibility. Facilities include parking, toilets, showers, changing rooms, and first aid.

Pump House at Dutch Springs is a freshwater site featuring the original flooded pumping station. This artificial reef includes a submerged staircase and pipes, offering a unique architectural topography for divers and snorkellers. The site ranges from 8 to 30 metres in depth, with an average of 12 metres. Visibility typically spans 9 to 18 metres. Water temperatures vary by season, with a thermocline often present at 12 metres. Divers should be prepared for cold water and potential entanglement hazards. The site is accessible via shore entry and is suitable for beginners. The habitat supports various temperate freshwater fish and invertebrates.

Lake Hydra is a flooded quarry located in Dutch Springs, United States, offering a variety of artificial reefs and wrecks for exploration. The site features depths ranging from 3 to 30 metres, with an average depth of 10 metres. Divers should be prepared for thermoclines, as water temperatures can drop to the low 40s (°F) at deeper levels, even during summer. Visibility typically fluctuates between 5 and 25 metres. Entry is via the shore, and the site is suitable for beginners. On-site facilities include parking, toilets, showers, changing rooms, a rinse station, air fills, guided tours, a dive shop, equipment rental, and a cafe.