Famous bathing lake · Austria
Attersee
Attersee has 6 officially rated bathing spots, 6 of them currently with excellent water quality according to the EEA (as of June 2026).
The Attersee is Austria's largest lake, stretching across roughly 46 square kilometres in the heart of the Salzkammergut region in Upper Austria. Its remarkably clear water warms to around 24 °C in summer, making it a favourite for swimmers, windsurfers, and divers alike. Every single one of the six official EU bathing spots holds an 'excellent' water quality rating.
Families will feel right at home at Attersee, Seewalchen, where the gently sloping shoreline is ideal for young children. Adventure seekers head south to Attersee, Steinbach and Attersee, Weißenbach for sailing and windsurfing conditions that draw enthusiasts from across Europe. For a quieter escape, Attersee, Litzlberg on the northern shore offers a peaceful atmosphere framed by rolling Alpine foothills.
nextlake.eu helps you find every official EU bathing spot on the Attersee at a glance – complete with live water quality data, GPS coordinates, and an interactive map to plan your perfect swim day.
All bathing spots
FAQ
Can you swim in Attersee?
Yes, swimming in Attersee is very popular and highly recommended. It is a freshwater lake in Austria with well-maintained bathing spots. The clear water and scenic surroundings make it a great destination for swimmers.
Is Attersee clean?
Attersee is very clean. All 6 officially monitored EU bathing sites have received the top rating of 'excellent', which is the highest classification under the EU Bathing Water Directive. The water quality is consistently high.
Is it safe to swim in Attersee?
Yes, swimming in Attersee is safe. All 6 EU-assessed bathing sites meet the highest water quality standards and are rated 'excellent'. Sticking to the designated bathing areas ensures the best and safest experience.
Where can you swim at Attersee?
Attersee has 6 officially rated EU bathing sites, all of which are classified as excellent. You can find detailed information about each bathing spot on nextlake.eu. Whether you prefer a quiet cove or a busier beach, there is a suitable option for everyone.
Is Attersee the largest lake in Upper Austria?
Yes, Attersee is the largest lake in Upper Austria and one of the largest lakes in the entire country. It is located in the Salzkammergut region and is known for its exceptionally clear water. Its size and depth contribute to its outstanding water quality.