Zimnik Kamieniołom is a freshwater quarry site in Poland featuring steep walls and artificial reef structures. Divers enter from a rocky shore, following a cascade descent to reach the depths. A training platform is located at 5 metres, with further wall sections accessible at 8, 10, and 14 metres. The site reaches a maximum depth of 29 metres, with an average depth of 25 metres. Visibility typically ranges between 1 and 6 metres. Due to the deep, cold water and low visibility, this site is suited for divers who are comfortable with these conditions. Air fills are available at the on-site dive shop.

Mrowiny is a freshwater dive site located in a former kaolin mine pit in Poland. The site offers a maximum depth of 18 metres, with the upper 6 metres characterised by significant aquatic vegetation. Divers should be prepared for cold water temperatures and exercise caution regarding potential entanglement hazards and the risk of silt out. Entry is via the shore, and the site features mild currents, making it suitable for beginner divers. As a former industrial site, it provides a unique freshwater environment for training and exploration.

Lom Rumchalpa is a freshwater dive site in the Czech Republic featuring wrecks and artificial reefs. Divers can explore depths ranging from 5 to 18 metres. Access is via a shore entry, and the site is suitable for beginners. Visibility at the site varies between 1 and 8 metres, and low visibility is a noted hazard. The site supports a range of temperate freshwater fish and invertebrates typical of the region. On-site facilities include parking, toilets, showers, changing rooms, air fills, and equipment rental. Night diving is permitted at this location.