Katzensee

Katzensee is a lake on the border between the city of Zürich and the municipality of Regensdorf in the canton of Zürich, Switzerland. It sits at the edge of a major city, yet it is a favourite local escape into green surroundings: you can swim, walk around the water and watch birds.

What is Katzensee?

The lake covers about 36 hectares. It lies on the boundary between the Zürich-Affoltern district and Regensdorf. The area includes two main lakes, the Lower and Upper Katzensee, plus the smaller Büsisee. All were formed by a retreating glacier that shaped the local landscape.

Can you swim here?

Yes, but only at one designated spot. On the southern shore is the public lido Strandbad (Seebad) Katzensee, run by the City of Zürich. Sources say it opened in 1922. Entry is free, and lifeguards are on duty during set hours in season. There is a kiosk, a playground and childcare. Because the surrounding area is a protected nature reserve, restrictions apply, including rules on dogs, inflatables and rubber boats. The upper lake is fenced off and is not used for swimming.

What is the walk around the lake like?

The loop around the lakes is roughly 3–4 km. It is described as a wide, mostly flat dirt path, and walking it usually takes about an hour and a half, though some sources give a shorter time. There is one short, gentle climb, and a stretch at the western end runs beside a busy road. It suits families and anyone who does not want a demanding hike.

Why visit?

• A nature reserve with a mix of lakes, reedbeds and meadows, popular with birdwatchers and photographers.
• A lido with basic facilities and free entry.
• An easy, short walking loop close to Zürich.

Frequently asked questions

Where exactly is Katzensee? On the border of the city of Zürich and Regensdorf in the canton of Zürich, north of the city centre. Coordinates are about 47.43 N, 8.49 E.

Is the lido free? According to available information, entry is free. Check the season and lifeguard hours on the City of Zürich website before you go.

Are dogs allowed? Dog restrictions apply because this is a protected area. Follow the rules posted on site.

How long does the lake loop take? Around 1 to 1.5 hours at an easy pace, for a distance of 3–4 km.

When is the best time to go? Weekends can be crowded and parking fills up early. Public transport or a bicycle is easier than driving.