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Switzerland is famous for its mountains, but equally so for its beautiful and majestic lakes. It isn’t called the ‘Water Castle of Europe’ for nothing. Dominated by mountains, each canton offers its own unique charm. People take great pride in their long history, beautiful cities, and, of course, their lakes.
„Circumnavigate the ten largest lakes in Switzerland on foot and earn your coveted Iron Lake Challenge collector’s medal in the “Switzerland” Edition!

Imagine circumnavigating the ten largest lakes in Switzerland on foot. You’ll get to truly know this beautiful country, enjoy a relaxing time in nature, and sample the diverse culinary delights of each region. There is no time pressure at all, because the Iron Lake Challenge isn’t about setting times or records—it’s all about pure enjoyment.
Registration an Scope of Services
Registration for the Iron Lake Challenge Switzerland costs you €24.
This entry fee includes our Iron Lake Challenge “Switzerland” Edition collector’s medal as well as the green marble (20mm) from the Timeless Challenge .

However, to earn this, you first have to circumnavigate the ten largest lakes in Switzerland! Only then will we send you your well-deserved medal and marble! After all, you want to earn them, not receive them as a gift.
With your registration fee, you support my passion project of reforestation of one million oft trees
How to register
- Please click on the image and you will be redirected to the registration page of our partner Digistore24.
- You will receive a registration confirmation with all the important information.
- Now you have to circumnavigate the ten largest lakes in Switzerland on foot. You have as much time as you need for the ten lakes. As proof, you can submit a screenshot of your tracking to our Challenge-Tool
- Once we’ve checked your submission, you will get your well-deserved medal and marble. Simple as that, right?
Your medal and your marble
Once you have circumnavigated the ten largest lakes in Switzerland on foot, we will send you the beautiful Iron Lake Challenge ‘Switzerland’ Edition collector’s medal and the green marble by post. This could be the very first piece in your growing Iron Lake Challenge collection!
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The ten largest lakes in Switzerland
The Iron Lake Challenge Switzerland will show you Switzerland from its finest (lake) side. You will circumnavigate these ten lakes on foot and experience unforgettable moments:
| Lake | Length |
| Neuenburgersee | approx. 100 km |
| Vierwaldstättersee | approx.140 km |
| Zürichsee | approx.90 km |
| Thunersee | approx.48 km |
| Bielersee | approx. 43 km |
| Zugersee | approx. 38 km |
| Brienzersee | approx. 38 km |
| Walensee | approx. 44 km |
| Murtensee | approx. 30 km |
| Sempachersee | approx. 20km |
Important Links
- Challenge Tool Switzerland for entering your circumnavigations
- Detailed explanation of our tool (.pdf)
- Iron Lake Challenge Switzerland – Hall of Fame
- Life Lake Museum Overall ranking of the challenge
- Life Museum (Overall Ranking – Timeless Challenge)
- Trees4Breeze – Reforestation and Forest Conservation, Funded by the Timeless Challenge




