

Best for beginner divers, 10-20m, shore entry.
Zwirownia Guznia is a freshwater quarry in the Masurian Lake District featuring an artificial reef. Divers can explore depths ranging from 10 to 20 metres, with an average depth of 15 metres. The site offers shore access and is suitable for beginners, though conditions include cold water year-round and visibility of approximately 5 metres. Hazards include entanglement risks and low visibility. Divers should use a drysuit or thick wetsuit with hood and gloves. The habitat supports various temperate freshwater fish and invertebrates typical of the region. Early morning dives on weekdays are recommended to avoid reduced visibility caused by heavy use.
52.07067, 19.82822
Cold water is a constant here regardless of season, so a drysuit or a thick wetsuit with hood and gloves is worth packing even in summer. Visibility can drop further after rain or heavy use, so an early morning dive on a quieter weekday gives you the best conditions.
Located in a forest near Łowicz. Access is possible from the Guźnia side where there is space to leave a car. There are no piers or handrails.
Recorded at this site
Depth
10-20m
Visibility
5m
Skill Level
Beginner
Entry
Shore
Current
None
Typical Dive
40 min
Best Time
Apr, May, Sep, Oct
The site supports a variety of temperate freshwater fish and invertebrates, including species such as sturgeon, pike, perch, and various carp, though sightings are based on regional habitat models.
Yes, the site is suitable for beginners, as the lack of current makes it a manageable environment for practising buoyancy and navigation skills.
Depths at this quarry range from 10 to 20 metres, with an average depth of 15 metres.
Entry to the water is via the shore.
Divers should be aware of cold water, potential entanglement, and low visibility. Additionally, caution is advised when entering from the shore due to the presence of bottom-dwelling hazards.
Diving at Zwirownia Guznia in Łowicz requires the following certifications: Open Water. Always dive within your training limits.
The best months to visit Zwirownia Guznia in Łowicz are April, May, September, and October. Conditions outside these months can still be good but are less predictable.
Visibility at Zwirownia Guznia in Łowicz typically ranges from 5 metres to 5 metres. Conditions vary with weather, tides, and seasons.