What are the best lakes to swim in Slovakia?

28 of the designated bathing waters in Slovakia are rated Excellent for 2025. This page lists the 25 with the longest run of that class. The rating measures bacteria, not nutrients or clarity.

Is it safe to swim in Slovakia lakes?

An Excellent class is not a safety clearance. It does not cover algal blooms, depth, or currents. Conditions change after heavy rain. Check local notices the day you go.

Does LakeQuality give A–F grades for lakes in Slovakia?

No. Best-lakes lists for Slovakia use the authority's own Excellent to Poor class. A letter on the LakeQuality scale would be an invention.

Updated 2025

Best lakes to swim in Slovakia

Best lakes in Slovakia: 28 designated bathing waters are rated Excellent for 2025. This list is the 25 with the longest run of that class, of 40 rated sites. The class measures bacteria — it is not a LakeQuality A–F grade or a safety clearance.

Lake map

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Longest-running Excellent lakes in Slovakia

Liptovská MaraExcellent · Excellent 11/11 seasons
RužínExcellent · Excellent 11/11 seasons
Veľká Domaša - TíšavaExcellent · Excellent 11/11 seasons
Veľké Kolpašské JazeroExcellent · Excellent 11/11 seasons
Zemplínska šírava - HôrkaExcellent · Excellent 11/11 seasons
Zemplínska šírava - KamenecExcellent · Excellent 11/11 seasons
Zemplínska šírava - Medvedia HoraExcellent · Excellent 11/11 seasons
Zemplínska šírava - PaľkovExcellent · Excellent 11/11 seasons
DrieňokExcellent · Excellent 10/10 seasons
Zemplínska šírava - Biela HoraExcellent · Excellent 10/10 seasons
šulianske JazeroExcellent · Excellent 9/11 seasons
Pláž OrmetExcellent · Excellent 9/10 seasons
Veľká Domaša - ValkovExcellent · Excellent 8/11 seasons
Ivanka Pri DunajiExcellent · Excellent 7/11 seasons
Počúvadlianske JazeroExcellent · Excellent 7/11 seasons
Veľká Domaša - Nová Kelča - Polostrov KrymExcellent · Excellent 7/11 seasons
Vinianske JazeroExcellent · Excellent 7/11 seasons
Vajnorské JazeroExcellent · Excellent 6/11 seasons
Veľké Richnavské JazeroExcellent · Excellent 6/6 seasons
Veľká Domaša - HolčíkovceExcellent · Excellent 5/11 seasons
Veľká Domaša - PoľanyExcellent · Excellent 5/11 seasons
Vindšachtské JazeroExcellent · Excellent 5/11 seasons
Zelená VodaExcellent · Excellent 5/11 seasons
Veľká Domaša - Nová KelčaExcellent · Excellent 4/11 seasons
Zlaté Piesky - PlážExcellent · Excellent 4/11 seasons

Frequently asked questions

What are the best lakes to swim in Slovakia?: 28 of the designated bathing waters in Slovakia are rated Excellent for 2025. This page lists the 25 with the longest run of that class. The rating measures bacteria, not nutrients or clarity.
Is it safe to swim in Slovakia lakes?: An Excellent class is not a safety clearance. It does not cover algal blooms, depth, or currents. Conditions change after heavy rain. Check local notices the day you go.
Does LakeQuality give A–F grades for lakes in Slovakia?: No. Best-lakes lists for Slovakia use the authority's own Excellent to Poor class. A letter on the LakeQuality scale would be an invention.