Zakrzówek is dying. You can't see it from the shore.

The algae problem in the pools should not be treated only as an aesthetic issue. If large amounts of biomass enter deeper parts of the reservoir, they may worsen oxygen conditions and accelerate degradation invisible from the shore.

ZIS has stated that the pools are mechanically cleaned and algae are removed for use as fertiliser. Divers have reported, however, that some material may return to the reservoir. Every cleanup should have a report, waste documentation, funding information and a description of the actual environmental effect.

Official messages indicated that 2025 testing did not confirm hydrogen sulphide in the bathing area and included samples from depths of 5, 15 and 25 metres.

Diver reports indicate that potential problems may occur deeper, near the bottom, or where organic matter settles. We call for testing of the full water column, bottom sediments, oxygen, hydrogen sulphide, vegetation and fish populations at multiple points across the reservoir.

During a bottom cleanup in September 2025, divers recovered tyres, shopping carts, old road signs, bottles and a car battery. Eighty people joined the action, yet waste remains a serious problem, especially outside the most frequently controlled parts of the reservoir.

Bottom waste is not only a cleanliness issue. It is a risk for animals, water users, divers and the ecosystem. Residents and sponsors have the right to know what was actually done, who was responsible and what the effect was.

Divers have reported a drastic fall in fish numbers, in their assessment reaching even around 90%. That is not a signal to ignore. It is an alarm that requires immediate, independent verification.

If underwater problems appear with oxygen, sediments and decomposing biomass, the answer cannot be a calming message. The answer must be full, regular and public research.

Not only visible waste enters the water. Mass use also brings food residues, sweat, cosmetics, sunscreen and other nutrient loads.

That is why we want an education campaign: use Zakrzówek as if you were returning to the same water tomorrow. Others will return too: people, fish, birds and organisms invisible from the platform. Responsible access is the opposite of chaos, not a ban on use.

In early June 2026 the bathing area was temporarily closed after an unknown substance was detected in the water. Initial reports pointed to a substance associated with a rust remover containing hydrochloric acid. According to the 5 June update, laboratory tests were ongoing and ZIS was preparing to pump out water and clean the pools.

This incident shows that Zakrzówek needs clear procedures: quick detection, documentation, resident information and cooperation with people who regularly observe the reservoir. Public money needs a public report, not only a short message after a crisis.

Zakrzówek should be a place for sport, education, recreation and nature protection. The Water Sports Centre cannot be treated only as a commercial back office. It must serve water users, safety, ecological education and accessibility.

The question keeps returning: does the CSW infrastructure actually respond to the needs of water sports, divers, trainees and users with disabilities? Operator decisions, use of the CSW and public funds require public answers, transparent rules and accountability.

Accessibility is not only adapted toilets. It also means reaching and leaving the reservoir area, functioning lifts, the ability to use services, safety and logical movement for people with limited mobility.

We call for an accessibility audit of the whole facility with people who actually use wheelchairs, rehabilitation equipment and assistance.