Robertville is a freshwater quarry in Belgium featuring artificial reefs and submerged wrecks. Designed for intermediate divers, the site ranges from 15 to 40 metres in depth. Visibility is limited to 2 to 5 metres, requiring proficient buoyancy control and the use of torches. The environment supports typical freshwater habitats, though specific sightings are not confirmed. Shore entry is standard, and the site offers comprehensive facilities including air fills, showers, and a cafe. Due to the depth and cold water temperatures, which range from 5 to 22°C, appropriate thermal protection is necessary. Divers must hold a deep speciality or equivalent qualification to access the site.

Bütgenbach Stausee is a freshwater reservoir in Belgium featuring an artificial reef structure. The site is suitable for beginners, with depths ranging from 3 to 18 metres and mild currents. Divers can access the water from the shore, with the main structure located approximately 100 metres out. Visibility typically fluctuates between 2 and 10 metres, and conditions can deteriorate following rainfall. The environment supports various freshwater fish and invertebrates typical of the region. Facilities include on-site parking and air fills, and the site is open for night diving. Divers should remain vigilant for boat traffic and use a surface marker buoy when surfacing.

Carrière de Lillé is a flooded quarry in the Sprimont Quarries area of Belgium, featuring an artificial reef created by submerged structures. This freshwater site offers calm, current-free conditions suitable for beginners. Divers can expect depths ranging from 24 to 30 metres, with an average depth of 27 metres. Visibility varies between 4 and 15 metres. Shore entry is straightforward, though caution is advised around submerged structures and rocks. On-site facilities include a dive shop, air fills, parking, showers, changing rooms, and a cafe. Typical dives last approximately 40 minutes. Thick gloves are recommended to protect against sharp rocks and structures during entry and exploration.

Rursee Bank 2 is a freshwater reservoir dive site in Germany featuring a combination of reef and wall structures. The site is suited for intermediate divers, with depths ranging from 30 to 65 metres. Divers should be prepared for cold water and visibility that fluctuates between 3 and 10 metres. Shore access is available, and the site provides comprehensive facilities including parking, showers, changing rooms, a rinse station, and air fills. Due to the depth and potential for entanglement, divers must monitor their depth closely and carry a line cutter or dive knife. Boat traffic is present, requiring constant awareness throughout the dive.

Rursee Bank 1 is a deep freshwater site in Fühlinger See, Germany, offering a combination of reef, wall, and wreck topography. The site is accessible from the shore and reaches depths between 40 and 65 metres, requiring advanced diving skills and precise gas planning. Visibility is variable, ranging from 3 to 10 metres, which necessitates careful navigation. Divers should be aware of entanglement risks near the wreck and monitor their depth closely. On-site facilities include parking, showers, changing rooms, a rinse station, and guided tours. Due to the depth and potential for low visibility, carrying a torch and a cutting tool is recommended for all dives.

Carrière de La Gombe is a flooded sandstone quarry in Belgium offering a unique freshwater diving experience. The site features artificial reefs and wrecks submerged within depths ranging from 7 to 30 metres, with an average depth of 6 metres. Divers can expect visibility between 5 and 10 metres. Entry is via the shore, and the site is suitable for intermediate divers. Facilities on-site include parking, toilets, showers, changing rooms, a rinse station, air fills, a cafe, and first aid. Night diving is permitted at this location. Divers should remain aware of potential boat traffic and entanglement hazards while exploring the underwater structures.

Basis am Blausteinsee is a former quarry lake offering a structured freshwater environment for intermediate divers. The site features an artificial reef and a wreck, with depths ranging from 20 to 40 metres. Shore entry is straightforward, and the absence of current allows for focused exploration. Visibility is variable, typically between 1 and 10 metres, often requiring the use of a torch. Water temperatures remain cold below 10 metres, even during summer, making drysuits essential. The site is open year-round and supports night diving. On-site facilities include parking, toilets, showers, air fills, and guided tours.

Fühlinger See is a former quarry lake in Germany offering depths between 3 and 46 metres. The site features an artificial reef and a wreck, providing navigation targets for divers. Shore entry is straightforward, and the mild current makes the site suitable for beginners. Visibility varies between 1 and 10 metres. Divers should be prepared for cold water, which can drop significantly below 10°C at depths exceeding 10 metres. The site supports temperate freshwater fish and invertebrates typical of the region. Due to the presence of a wreck and swim-through areas, specific overhead environment training is required for penetration. Full facilities including air fills and a dive shop are available on site.