Jezioro Szmaragdowe is a freshwater lake located in the Czarnogłowy Quarry, Poland. This site features an artificial reef and a wreck, providing a structured environment for divers. Shore entry allows for straightforward access, and the water conditions typically present only mild currents. Depths range from the surface to 15 metres, with an average depth of 8 metres, making it suitable for beginner divers. Visibility can vary significantly, so divers should check local conditions before entering the water. Due to the presence of a wreck, divers must be aware of potential entanglement risks and overhead environments, ensuring they remain within their training limits at all times.

Jezioro Miedwie Torpedoanlage is a freshwater artificial reef located in Poland. The site features depths ranging from 5 to 20 metres, suitable for intermediate divers. Entry is via the shore, requiring divers to transport their equipment from the parking area. The site experiences mild currents and visibility typically between 5 and 15 metres. Divers should be prepared for thermoclines and variable visibility. The habitat supports various freshwater fish and invertebrates typical of the region. Due to the nature of this freshwater environment, divers should use appropriate thermal exposure suits for cool conditions.

Krugsdorfer Kiessee is a former gravel pit lake in Brandenburg that functions as an artificial reef. This freshwater site offers depths ranging from 10 to 25 metres, providing a structured environment for intermediate divers. Entry is via the shore, where parking is available for kit setup. Visibility is typically limited between 2 and 5 metres, making the site suitable for practising navigation and buoyancy control. There is no current in the lake. Divers should maintain awareness of entanglement risks when navigating near the artificial reef structures and exercise caution during entry and exit to avoid snagging equipment on underwater features. A dive torch and compass are recommended for these conditions.

Jezioro Czarnoglowy Srednie is a freshwater quarry in Poland featuring artificial reef structures and kelp growth. This site offers a varied underwater landscape suitable for beginner divers, with depths ranging from 5 to 28 metres and an average depth of 9 metres. Shore entry is straightforward, and the lack of currents provides a calm environment for practice. Visibility typically fluctuates between 2 and 8 metres. Due to water temperatures ranging from 4 to 17 degrees Celsius, a drysuit or a minimum 7mm wetsuit is required year-round. Divers should exercise caution around the artificial reef structures, which may have sharp edges.

Jezioro Czarnogłowy is a freshwater quarry in Poland featuring a diverse underwater topography that includes an artificial reef, a wreck, a wall, and a drop-off. The site is suitable for beginners, with depths typically ranging between 15 and 25 metres. Visibility generally spans 5 to 10 metres. Divers should note a significant thermocline, as water temperatures drop to 3 to 4°C below 5 to 6 metres, while surface temperatures vary from 4 to 17°C throughout the year. A drysuit or thick wetsuit is recommended for all dives. Shore entry is facilitated by available parking, allowing for convenient access to the water.

Unteruckersee is a freshwater dive site in the Berlin and Brandenburg region of Germany, offering shore access for divers of all levels. The site features depths ranging from 18 to 19 metres, with an average depth of 18 metres. Visibility is typically 5 metres, making a torch useful for observing details. Divers should remain aware of surface boat traffic and use a surface marker buoy during ascent. The underwater environment includes various temperate freshwater fish and invertebrates typical of the region. On-site facilities include a cafe, showers, and gear storage, allowing for convenient preparation and post-dive rinsing. Divers should wear protective footwear to avoid contact with sharp rocks and remain cautious of potential entanglement hazards.