Piechcin Quarry is a flooded limestone site offering a variety of underwater attractions and training platforms. Divers can explore depths ranging from 4 to 26 metres, with an average depth of 15 metres. The site features an overhead environment and requires careful management of decompression and nitrogen narcosis risks. Shore entry is standard, and the site is well-equipped with parking, toilets, showers, changing rooms, and a rinse station. On-site facilities also include air fills, equipment rental, and guided tours. The site is suitable for beginners and supports night diving, with typical dives lasting around 40 minutes and visibility ranging between 5 and 15 metres.

Neptun is a purpose-built artificial reef located in the freshwater lakes of Poland. The site features artificial structures that reach depths of up to 32 metres. Divers access the reef directly from the shore, where mild currents are typically present. Visibility ranges from 5 to 8 metres, and a thermocline exists at approximately 3 to 3.5 metres, causing a noticeable temperature shift during descent. The site is suitable for intermediate divers who should be prepared for low visibility conditions. Facilities available on-site include parking, showers, changing rooms, and air fills. The habitat supports various temperate freshwater fish and invertebrates typical of the region.

Budzisławskie Lake, located in the Greater Poland Lakes region, offers shallow, shore-entry diving reaching depths of up to 10 metres. This site is suitable for beginners focusing on fundamental skills, with mild currents present throughout the area. Visibility at the site is variable, and divers should be prepared for cold water conditions year-round. A well-fitted wetsuit or drysuit is essential for thermal protection. As facility information is not confirmed, it is recommended to verify current site conditions and local access details with a contact in the area before planning a visit.

Baza I Tor is a freshwater dive site located in Powidz Lake, Poland. The site offers a shallow experience with depths typically ranging between 4 and 7 metres, averaging 6 metres. Access is via a shore entry. Divers should be prepared for low visibility conditions, which are a known hazard at this location. The site is suitable for beginners and provides various facilities, including parking, air fills, equipment rental, and guided tours. The underwater environment supports a variety of temperate freshwater fish and invertebrates typical of the region, though specific sightings are not confirmed.

Powidz Lake offers freshwater diving across a reef structure that extends from 5 to 20 metres. The site is accessible via shore entry and features mild currents, making it suitable for beginner divers. Visibility typically ranges between 5 and 15 metres. Divers should be prepared for thermoclines during descent, which result in sharp temperature shifts at depth. The site supports night diving and is open year-round. On-site facilities include air fills, showers, toilets, and gear storage. Divers must remain alert to surface boat traffic, particularly during busy periods.

Powidz Lake is a freshwater dive site in Poland offering shallow, accessible diving. The site features an average depth of 4 metres, with a range typically between 3 and 6 metres. Divers can expect visibility between 5 and 15 metres. Entry is via the shore, making it suitable for beginners. Facilities at the location include parking, air fills, showers, and changing rooms. Dives here typically last around 40 minutes, and the site is open for night diving. Summer water temperatures generally range from 18°C to 24°C, while winter temperatures drop to between 0°C and 5°C.

Kosewa is a freshwater artificial reef located in Powidz Lake. The site is accessible from the shore, with the structure situated approximately 15 metres from the water's edge. Divers can expect depths ranging from 15 to 25 metres, with an average depth of 20 metres. Visibility at the site typically fluctuates between 5 and 10 metres. Due to the depth and nature of the artificial structure, this site is suited for intermediate divers who hold at least an Open Water certification. On-site facilities include parking, toilets, and air fills, making it a convenient location for a day trip.

Baza Nurkowa Nautica is a freshwater dive site located in Powidz Lake, Poland. The site features an artificial reef structure and is suitable for beginner divers. Dives typically last around 40 minutes at an average depth of 4 metres. Entry is via the shore, and visibility generally ranges between 5 and 15 metres. The facility provides air fills, equipment rental, and guided tours, with parking available on-site. Night diving is permitted at this location. As a deep freshwater site, divers should remain aware of depth limitations during their activities.