Diver's Bay is a freshwater reef site located on the south side of Lake McConaughy near the dam. The site features a rocky bottom that provides a distinct contrast to the surrounding sandy areas. Divers can expect depths ranging from 2 to 20 metres, with an average depth of 7 metres. Entry is via the shore, and conditions include mild currents and visibility typically between 3 and 5 metres. Water temperatures vary significantly by season, ranging from 0 to 4 degrees Celsius in early spring to 18 to 27 degrees Celsius in summer. Hazards include boat traffic and cold water. Facilities available include parking, toilets, showers, a rinse station, air fills, a dive shop, and boat charters.

Martin Bay Rocky Points is a freshwater site located in the United States near Lake McConaughy. The site features rocky outcrops along the edges of the bay that function as natural reefs. Divers and snorkellers can access the water directly from the shore. Conditions at this site are variable, with potential hazards including boat traffic, cold water, and low visibility. Facilities available to visitors include parking, toilets, showers, and changing rooms. The site is suitable for beginners, though snorkelling is rated 2 out of 5. There is no specific data regarding marine life at this location.

Lemoyne is a freshwater artificial reef site located in the United States near Lake McConaughy. The site features the submerged foundations of the original town of Lemoyne, including building remains and old root cellars. Divers can explore these historical structures at depths ranging from the surface down to 15 metres. Entry is via the shore, and conditions generally feature mild currents. The site is suitable for beginners, though divers should be aware of potential hazards including boat traffic, entanglement risks, and low visibility. Facilities available at the location include parking, toilets, showers, a cafe, and boat charter services.

West End Underwater Trees is a freshwater dive site located near the river inlet at the western end of Lake McConaughy. The site is defined by clusters of submerged trees that provide structural cover within the reservoir. Divers should be prepared for variable conditions, including cold water and low visibility caused by river silt. Depths at this site reach up to 43 metres. Access is strictly by boat, and the site is suited for advanced divers due to the potential for challenging conditions. Hazards include boat traffic in the area. Facilities including air fills, equipment rental, and boat charters are available nearby.