Bolko

On the beach

🏊 Lifeguard 🚻 Toilets 🗑️ Bins 🛶 Pier 🔥 Grill / campfire

Bathing season

June 26, 2026 - Aug. 31, 2026

Opening hours

10:00 - 19:00

Shoreline length

60 m

Operator

Urząd Miasta Opola ul. Rynek 1A, 45-015 Opole [email protected] 774543266

A. Basic Information: 1) Description of the physical, hydrological, and geographical characteristics of the bathing water located on the lake: a) Elevation above sea level < 200 m, b) Lake area 39.5 ha, c) Abiotic type of the lake: not specified, d) Characteristics of the bathing area’s bottom: sandy and sandy-silty, e) Lake depth: max: 16 m, average: ~4 m. B) Informing the public about water test results: displaying flags, websites (WSSE, PSSE), and notice boards located in the area adjacent to the bathing area. C) Identification and assessment of the causes of pollution that could affect the water in the bathing area and have an adverse effect on the health of bathers: Due to the lack of inflows into the excavation, the only possible sources of water contamination are heavy rainfall, landslides, or acts of vandalism. D) Assessment of the potential for cyanobacterial blooms: 1) Algal blooms caused by cyanobacteria observed over the past 4 years: none detected; 2) Risk of cyanobacterial blooms in the future: low; E) Assessment of the potential for macroalgae or phytoplankton proliferation: not applicable. Download the bathing water profile

Frequently asked questions

Is it safe to swim in Bolko?

Safe to swim. Sanitary rating: suitable.

What is the water temperature in Bolko?

21.3°C (measured 21.08.2026).

Is there algae in Bolko?

No algae bloom reported. Check the status regularly in season.