Lake Głębokie in Western Poland offers a diverse freshwater diving experience featuring artificial reefs and sunken structures. Divers can explore an underwater obstacle course, various platforms, and intentionally submerged boats and kayaks. The site includes specific navigation points such as road signs and a water pipe. Depths range from 5 to 25 metres with an average of 9 metres. Visibility typically spans 4 to 8 metres. The environment supports a variety of temperate freshwater fish and invertebrates typical of the region. Access is available via both shore and boat, with facilities including parking, air fills, and guided tours. The site is suitable for beginners and supports night diving.

Jezioro Trzesniowskie is a freshwater lake in Western Poland offering wall and artificial reef topography. Divers can expect depths ranging from 15 to 58 metres, with an average depth of 25 metres. Conditions vary, with visibility typically between 7 and 12 metres and mild currents. Entry is possible from both shore and boat. Due to the depth and potential for low visibility and entanglement hazards, this site is suited for intermediate divers. Typical dives last around 45 minutes. Facilities available at the site include air fills, a dive shop, parking, and guided tours.