Upper‑Sûre Lake (Haute‑Sûre)
Luxembourg’s largest lake for watersports & nature
The Upper‑Sûre Lake spans approximately 380 ha, making it the largest reservoir in Luxembourg, situated within the Upper‑Sûre Natural Park. About 2 km downstream of the dam, outside the protected area, swimming, canoeing, diving, windsurfing and sailing are allowed – motorboats are banned, ensuring a peaceful environment.
Built between 1959 and 1961 with a 50 m-high dam, the Esch‑sur‑Sûre reservoir provides drinking water to around 70 % of Luxembourg’s population and generates hydroelectric power via a hydropower plant. The lake’s average depth is 30–35 m (max 43 m), making it ideal for beginner and advanced divers alike.
The reservoir lies within a 154 km² nature park offering extensive hiking and MTB trails through forests and along panoramic viewpoints – perfect for a full day of active relaxation.
