Lakes around Hornussen, a municipality now part of Böztal, primarily refer to water bodies in the surrounding region rather than natural lakes directly within its former boundaries. The area's water features are predominantly rivers and streams. However, the wider vicinity offers various ponds and a natural swimming pool for visitors. This region in Aargau canton, Switzerland, provides opportunities for outdoor activities centered around these water features.
Last updated: June 28, 2026
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For me, the most beautiful natural swimming pond in the wider area. Very well maintained. Beautiful with blooming water lilies.
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Secluded and very quiet spot for observing waterfowl.
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always beautiful here. Always worth a visit
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A small footbridge leads us from one side to the other. It's lovely to stop on the footbridge and watch the flowing water.
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I drove past first. I didn't regret my return trip! A beautiful little lake, Aaschächli, hidden and quiet. A little idyll. Unfortunately, I was there at dusk, so I couldn't see much, but I could still see and, more importantly, hear the birds landing on the water, seeking nighttime shelter. A perfect place to unwind. Thank you to the creator of this highlight 😍🔝.
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The duckweed covers the pond, what lies beneath remains a mystery.
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No, there are no notable natural lakes located directly within Hornussen. The municipality's water bodies are primarily rivers and streams. The guide focuses on various ponds, oxbow lakes, and a natural swimming pool in the wider vicinity of Hornussen.
Around Hornussen, you can explore a variety of water bodies including privately-created ponds, a public natural swimming pool, and oxbow lakes. These offer diverse experiences from relaxing by the water to swimming.
Yes, several water attractions around Hornussen are family-friendly. The Biberstein Natural Swimming Pool is ideal with its large pool, children's pool, and sunbathing lawn. The Aarschächli oxbow lake and the Small Pond are also noted as family-friendly spots for enjoying nature.
You can go swimming at the Biberstein Natural Swimming Pool. This was Switzerland's first public natural swimming pond, offering a unique experience with its biologically cleaned water.
The Aarschächli is an Aare oxbow lake, a shallow body of water fed by groundwater, serving as an important habitat for various plant and animal species. The Small Pond is a beautifully landscaped, privately-created pond with fish, described as a small, private nature reserve.
Yes, the region around Hornussen offers various outdoor activities. While specific trails directly around the listed ponds might be short, you can find numerous running trails, road cycling routes, and MTB trails in the wider area that can be combined with visits to these water features.
The Aarschächli oxbow lake is a habitat for many plant and animal species. After restoration, a small fauna has resurfaced, and beavers have also been noted in the area.
Yes, the Weiher Frick Nature Reserve is an idyllic pond on the outskirts of Frick. It's described as a very nice place that invites you to linger, with opportunities for hiking or cycling nearby.
The Biberstein Natural Swimming Pool holds the distinction of being Switzerland's first public natural swimming pond, opened in 2000. It's an organic swimming pool where you might even spot fish and frogs in the nearby cleaning basin, offering a unique, nature-integrated swimming experience.
Yes, places like the Small Pond are noted as very pretty spots to take a break. The Biberstein Natural Swimming Pool also has a sunbathing lawn and a kiosk with a bistro for relaxation and refreshments.
The Grüne Lagune Pond is known for its distinctive green appearance, often covered by duckweed and algae from spring to early summer, giving it a unique 'green' contribution to the landscape.


Still not found your perfect lake around Hornussen? Check out the guides of these regions to see even more beautiful places.