Upper Sure Lake
Luxembourg's largest body of water, a reservoir in the Ardennes supplying most of the country's drinking water.
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The Upper Sûre lake was created in the 1950s by damming the river above Esch-sur-Sûre, and it supplies the majority of Luxembourg's drinking water, which governs what may be done on it: swimming and motorised craft are restricted to particular zones and prohibited elsewhere. Where they are allowed, the lake is used for sailing, kayaking and swimming, with wooded arms running back into the Ardennes and paths around the shore.
What you actually see
- The reservoir - the country's largest water body, in a wooded Ardennes valley.
- The permitted zones - the areas where swimming and boating are allowed.
- The shore paths - the walking routes around the arms of the lake.
- The dam - the structure at Esch-sur-Sure that created the lake.
When to go
May to September is the season for the water. Restrictions apply year round because of the drinking supply. Autumn colour around the shore is good.
Honest expectations
Swimming and boating are prohibited over most of the lake because it is a drinking water source, and the rules are enforced. Permitted beaches are crowded in summer. Water levels vary.
Nearby
Esch-sur-Sure is downstream, and Wiltz is northeast.
What to pack for Upper Sure Lake
Chosen from what this place is for. Tap a kit for the full checklist.
Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.


