White Star Quarry is a freshwater dive site in the United States featuring a mix of wrecks, walls, and artificial reefs. The site offers shore access and is suitable for beginners, with depths ranging from 8 to 24 metres and an average depth of 12 metres. Visibility typically spans 6 to 12 metres. Water temperatures fluctuate from below 10°C in winter to 21°C in summer, with a thermocline present in mid-July. Divers should be aware of hazards including cold water, deep sections, entanglement risks, and boat traffic. On-site facilities include parking, toilets, showers, changing rooms, air fills, equipment rental, a cafe, a dive shop, and guided tours. Night diving is permitted.

Genoa Quarry is a spring-fed artificial reef located near the Detroit River. This site offers depths ranging from 1 to 30 metres, with an average depth of 10 metres. Entry is via the shore, making it accessible for beginners. Visibility varies significantly, ranging from 3 to 24 metres. Divers should be aware of hazards including cold water, deep sections, potential entanglement, and periods of low visibility. Facilities at the site include parking and toilets. Typical dives last approximately 60 minutes. While the site is used for both diving and snorkelling, the snorkelling experience is rated 2 out of 5.

Gilboa Quarry is a 14-acre limestone site in the United States offering both shallow recreational areas and deep technical zones. Divers can explore various wrecks and artificial reefs throughout the quarry. Depths range from 2 to 140 metres, with an average depth of 14 metres. Entry is via the shore. Conditions include mild currents and visibility between 5 and 25 metres. Significant thermoclines exist, with surface temperatures reaching 24°C in summer and bottom temperatures dropping to 3-4°C. The site features extensive facilities including a dive shop, air fills, equipment rental, showers, and changing rooms. It is suitable for beginners, though divers should be prepared for cold water and potential entanglement hazards.

Gilboa Quarry is a freshwater site in the United States featuring an artificial reef and a wide depth range of 5 to 43 metres. With an average depth of 14 metres, it accommodates both beginner and technical divers. The site offers shore entry and visibility ranging from 5 to 24 metres. Divers should be prepared for cold water, with bottom temperatures consistently near 4°C and seasonal surface variations. Thermoclines are present throughout the water column. Due to submerged structures and overhead environments, divers must maintain buoyancy control to avoid entanglement risks. Full facilities are available on-site, including air fills, equipment rental, and changing rooms.