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.

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.

Sunken Village Foundations at Dutch Springs offers a unique freshwater experience exploring the remains of a farming community flooded in 1960. Located 550 metres from shore, the site features concrete foundations accessible by boat or shore entry. Divers and snorkellers should be prepared for variable conditions, with depths ranging from 12 to 49 metres and an average depth of 15 metres. Visibility typically fluctuates between 3 and 10 metres. A thermocline exists at approximately 9 metres, where temperatures drop to 4 to 5 degrees Celsius year-round. Due to the depth, cold water, potential for entanglement, and moderate currents, this site is best suited for intermediate-level divers.

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.