What are the best lakes to swim in Luxembourg?

16 of the designated bathing waters in Luxembourg are rated Excellent for 2025. This page lists the 16 with the longest run of that class. The rating measures bacteria, not nutrients or clarity.

Is it safe to swim in Luxembourg 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 Luxembourg?

No. Best-lakes lists for Luxembourg 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 Luxembourg

Best lakes in Luxembourg: 16 designated bathing waters are rated Excellent for 2025. This list is the 16 with the longest run of that class, of 17 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 Luxembourg

Etangs Remerschen-Zone 1Excellent · Excellent 11/11 seasons
Etangs Remerschen-Zone 3Excellent · Excellent 11/11 seasons
Lac de la Haute Sure-BurgfriedExcellent · Excellent 11/11 seasons
Lac de la Haute Sure-FuussefeldExcellent · Excellent 11/11 seasons
Lac de la Haute Sure-InsenbornExcellent · Excellent 11/11 seasons
Lac de la Haute Sure-LiefrangeExcellent · Excellent 11/11 seasons
Lac de la Haute Sure-LultzhausenExcellent · Excellent 11/11 seasons
Lac de la Haute Sure-RommwissExcellent · Excellent 11/11 seasons
Lac de Weiswampach-Zone 2Excellent · Excellent 11/11 seasons
Lac de Weiswampach-Zone 1Excellent · Excellent 10/11 seasons
Etangs Remerschen-Zone 2Excellent · Excellent 9/11 seasons
Etangs Remerschen-Zone 4Excellent · Excellent 5/8 seasons
Lac de Weiswampach-Zone 3Excellent · Excellent 5/5 seasons
Lac de Weiswampach-Zone 4Excellent · Excellent 5/5 seasons
Lac d'Echternach - Auberge de JeunesseExcellent · Excellent 3/6 seasons
Lac d'Echternach - Ponton Grande ÎleExcellent · Excellent 2/6 seasons

Frequently asked questions

What are the best lakes to swim in Luxembourg?: 16 of the designated bathing waters in Luxembourg are rated Excellent for 2025. This page lists the 16 with the longest run of that class. The rating measures bacteria, not nutrients or clarity.
Is it safe to swim in Luxembourg 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 Luxembourg?: No. Best-lakes lists for Luxembourg use the authority's own Excellent to Poor class. A letter on the LakeQuality scale would be an invention.