Where to cool off in Luxembourg: lakes and pools across the country
The best spots to swim in Luxembourg
The 4 lakes where swimming is allowed
In Luxembourg, you can't just swim in any body of water. Only four lakes are officially supervised by the Water Management Administration, which adds up to 15 bathing zones across the country. The water is monitored all season, beach access is free, and the season runs from 1 May to 30 September. Lifeguard supervision is concentrated mostly in July and August, at peak times, so stay careful outside those windows.
The Upper Sûre lake (Haute-Sûre)
This is the country's largest body of water, in the west, and natural swimming at its best. It has six beaches: Insenborn, Lultzhausen, Liefrange, Burfelt, Rommwiss and Fuussefeld. Water quality here is rated excellent (2026 classification). At Lultzhausen, you can rent a kayak or a pedal boat. One thing to know: the lake sits in a nature reserve, so barbecues are only allowed in a few specific spots, and dogs are often banned from the beaches. It's the ideal place for a proper day by the water, with shade under the trees.
The Weiswampach lakes
Right up north, in the canton of Clervaux, two man-made lakes form a big relaxation area in the heart of the Luxembourg Ardennes. Swimming is supervised across four zones, with a beach and water rated excellent (2026 classification). It's the spot for families and water-sports fans: sailing, canoeing and pedal boats on the lower lake, and even wakeboarding or stand-up paddle (SUP). You can camp there too.
The Remerschen ponds (Baggerweier)
In the south-east, in the commune of Schengen and right by the Moselle, the Baggerweier is a former sand-extraction site turned into a real relaxation haven. With its 25 hectares of water and its lagoon-like look, it has four bathing zones and a sandy beach, with water quality rated excellent (2026 classification). People sunbathe, play volleyball and try stand-up paddle. Bonus: you're a stone's throw from the French and German borders, and from Schengen.
The Echternach lake
In the east, at the gateway to the Mullerthal (Luxembourg's "Little Switzerland"), the Echternach lake combines swimming and hiking. Swimming is allowed in a marked-off zone, reached via a small island near the youth hostel. You'll find a snack stand, toilets, and you can rent a pedal boat or walk or cycle around the lake. Water quality is rated good (2026 classification). A good plan if you want to pair a swim with a walk through the Mullerthal rocks.
Free beach, showers and WC, edge of the Mullerthal.
Nature beach, no dogs (fines).
Lake beach, BBQ allowed, paid parking.
Large beach, free parking.
Beach with kayak and SUP rental, no dogs.
Sandy beach, paid entry, SUP and kayak.
Lower lake, swimming and water sports.
Open-air pools, open in summer
Don't fancy driving all the way to a lake? A large share of towns have their own open-air pool, with chlorinated, supervised water, often a slide and a paddling pool for kids. Two things to know: it's paid (a few euros to get in), and many outdoor pools only open in summer, sometimes just from July to the end of August and only in good weather. Always check the opening hours for the current season before heading out.
In the north, the open-air pool in Vianden is a classic: a heated, Olympic-sized pool, a slide, and a stunning view of the castle. You'll also find a heated outdoor pool in Troisvierges, and the AquaNat'Our centre at Parc Hosingen opens an outdoor bathing pool when the temperatures climb.
In the centre and west, Redange-sur-Attert has lovely facilities for sunny days, and the big Les Thermes complex in Strassen has an outdoor pool on top of its whole indoor area.
In the south, Dudelange has its well-known open-air pool with its big 50-metre basin, and the Piko in Rodange plays it smart with a roof that retracts as soon as the weather's nice. A small caveat: outdoor pools sometimes close for renovation depending on the year (that was the case for Aquasud in Oberkorn), so a quick look at the commune's info before you go won't hurt.
In the east, the open-air pool in Remich is a summer classic: set on the Route du Vin, right by the Moselle at the foot of the vineyards, it has a big 50-metre pool with diving boards and a slide, a separate kids' pool, and even pre-heated water. It's usually open from mid-May to mid-September. You'll also find outdoor pools around Grevenmacher and Beaufort.
Open-air pool with slide, near the campsite.
Open-air pool with a big 50 m basin.
Open-air pool by the Moselle.
Retractable roof that opens in good weather.
Outdoor wave pool plus indoor area.
On the Wine Route, 50 m and pre-heated water.
Heated outdoor pool, kids' area.
Heated 50 m pool, slide, castle view.
Indoor pools, to swim all year round
A stormy day, a heatwave when a lake just won't cut it, or simply the urge to swim in the middle of winter: indoor pools are open all year, and some are genuine leisure complexes.
In the capital, d'Coque in Kirchberg holds the country's only 50-metre Olympic pool, plus leisure pools and a wellness area. Right in the city centre, the Badanstalt is a historic pool with whirlpools, a sauna and a Turkish bath, at a very gentle price. The City of Luxembourg also runs the Bonnevoie and Belair pools: you'll find all the addresses and opening hours at the City of Luxembourg pools (ouvre dans un nouvel onglet).
Right next to the city, Les Thermes in Strassen is one of the biggest complexes in the country, with over 1,000 m² of water surface, a wave pool, a giant slide and a sauna area. In Walferdange, the PIDAL (shared between the communes of Lorentzweiler, Steinsel and Walferdange) leans into wellness with a large sauna area.
In the south, An der Schwemm in Bettembourg offers a 25-metre pool and a slide, and the Aquasud complex in Oberkorn remains a safe bet on the indoor side. In the north, AquaNat'Our in Hosingen is more than 3,500 m² of sports pool, trampolines, a slide and saunas. And in the east, the Mondorf thermal spa plays in a different league: thermal water, a large spa and wellness area, in a more upmarket setting (and a bit pricier).
Indoor 25 m pool and slide.
3,500 m², slides and saunas, outdoor pool in summer.
Large indoor complex (outdoor recently under works).
Historic city-centre pool, sauna, gentle price.
Communal pool, open to the public at weekends.
Communal pool, 25 m basin.
The country's only 50 m Olympic pool.
25 m pool and heated outdoor pool.
Large complex, wave pool, slide, sauna.
Thermal estate, thermal water and spa.
Pool and large wellness area.
Indoor 25 m pool, limited public slots.
And if you still want a river
Fancy something wilder than pool tiles? The country's river spot is the Sûre, in the Mullerthal in the east. But let's be clear: these are not supervised bathing zones. Canoeing is even banned on most rivers in summer and depends on a minimum water level. So here, you paddle, picnic and dip your feet, but you don't take a dip in open water.
Three verified addresses, all on the Sûre:
- Kayaking in Dillingen (Beaufort municipality): paddle down to Echternach, rental at Outdoor Freizeit, 10 rue de la Sûre, L-6350 Dillingen. Bus stop Dillingen, Déiljen 200 m away, parking on site.
- Kayaking in Wallendorf-Pont: an 11 km route to Bollendorf, rental at Camping du Rivage, 7 route d'Echternach, L-9392 Wallendorf-Pont. Bus stop Wallendorf, Bei der Bréck 100 m away, and the bus brings you back to the start for free.
- By the Sûre in Rosport: a pontoon near the cross-border bridge, with water-skiing and stand-up paddle on summer evenings.
And if it's real river swimming you're after, it's just across the Belgian border, on the Semois (Lacuisine in Florenville, Chiny) and the Ourthe (Maboge in La Roche-en-Ardenne), where supervised beaches open in summer.
Kayak rental on the Sûre, paddle to Echternach. Unsupervised.
Pontoon by the Sûre, water-skiing and SUP in summer. Unsupervised.
Kayak rental, 11 km route to Bollendorf. Unsupervised.
Before you dive in, the practical stuff
Check the water quality on the day
The four lakes are monitored all season. According to the latest classification, quality is excellent at Haute-Sûre, Weiswampach and Remerschen, and good at Echternach (2026 classification). But that classification reflects the year, not the day's weather. After a prolonged heatwave or heavy rain, cyanobacteria (algae that can make water unsafe to swim in) can develop, and swimming is then temporarily not advised. The reflex before leaving: take a look at the official bathing-water bulletin (ouvre dans un nouvel onglet) and at the list of sites with their quality (ouvre dans un nouvel onglet).
Free or paid?
Access to the lake beaches is free. You only pay for the extras, like renting a kayak, a pedal boat or a windsurf board. The pools, on the other hand, are paid, but it stays modest for most communal pools. Only upmarket complexes like the Mondorf thermal spa move up a notch on price.
Getting there without a car
This is where Luxembourg is unbeatable: public transport is free across the whole country since 2020, trains and buses included. The lakes in the north and east take a bit more travel time, but they stay reachable by combining train and bus. No car needed to take a dip.
Safety, even in a supervised lake
Supervision is concentrated mostly in July and August, at busy times, so you're not always under a lifeguard's eye. In a lake, the bottom can drop away fast: keep an eye on the kids and stay within the marked zones. When it's very hot, get into the water gradually, wetting your neck and arms first, to avoid cold-water shock. And mind the sun: shade, water and sunscreen.
What about the rivers?
Outside the four designated lakes and the pools, swimming is often banned or dangerous: currents, uneven bottoms, and water quality that isn't monitored. Private gravel pits and watercourses aren't swimming spots, even when it's 35 degrees out. Stick to the official zones, it's safer.
Frequently asked questions
Yes. Access to the beaches of the four supervised lakes (Haute-Sûre, Weiswampach, Remerschen, Echternach) is entirely free. You only pay if you rent water gear or go to a pool.
There are four, for 15 bathing zones in total: the Upper Sûre lake (6 beaches, in the west), the Weiswampach lakes (in the north), the Remerschen ponds or Baggerweier (in the south-east, near Schengen) and the Echternach lake (in the east, in the Mullerthal).
Yes, in many towns: Vianden, Remich, Dudelange, Grevenmacher, Beaufort, Redange, Troisvierges and more. Most only open in summer, often from July to the end of August, so check the opening hours for the current season before you go.
It's not advised. Outside the official bathing zones, swimming is often banned or risky because of currents, uneven bottoms and unmonitored water quality. Better to stick to the four supervised lakes.
By public transport, which is free across the whole country. Buses and trains serve the main bathing zones and the communal pools. For the northern lakes, just count on a bit more travel time.