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A circumnavigation of Slovenia’s ten largest lakes—including the picturesque Lake Bled and the pristine Lake Bohinj—combines impressive panoramas with active exercise. Discover crystal-clear waters, untouched natural park landscapes, and spectacular mountain scenery from entirely new perspectives. Exploring on foot promises relaxation, adventure, and unforgettable moments.
Imagine how deeply you will get to know Slovenia by walking around its ten largest lakes. Take your time and use the loop around each of the following lakes as an opportunity to visit local sights, taste the culinary highlights, and meet the locals.
The lakes will challenge you and bring you wonderful moments in life. After all, you will cover many kilometers.
Registration an Scope of Services
Registration for the Iron Lake Challenge Slovenija costs you 24 EUR.
This registration fee includes our Iron Lake Challenge “Slovenija” Edition collector’s medal as well as the green marble of the Timeless Challenge.
However, you’ll first have to run around Slovenia’s ten largest lakes! Only then will we send you your well-deserved medal and marble—after all, you want to earn them, not just be given them.
With your registration fee, you support my passion project to plant one million trees.
How to register
- Bitte klicken Sie auf das Bild, um zur Registrierungsseite unseres Partners Digistore24 weitergeleitet zu werden.
- You will receive a registration confirmation with all the important information.
- Now you need to walk around the ten largest lakes in Slovenia. You have as much time as you need for all ten lakes. As proof, you can upload 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 walked around the ten largest lakes in Slovenia, we will mail you the beautiful Iron Lake Challenge “Slovenija” Edition collector’s medal along with the green marble. This could be the very first piece in your upcoming Iron Lake Challenge collection.
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The ten largest lakes in Slovenia
The Iron Lake Challenge Slovenija will show you Slovenia from its most beautiful (lake) side. You will circumnavigate these ten lakes on foot and experience unforgettable moments:
| Lake | approximate length of the loop in kilometers |
| Cerkniško jezero | 30 |
| Ptujsko jezero | 12 |
| Bohinjsko jezero | 12 |
| Šmartinsko jezero | 11 |
| Velenjsko jezero | 6 |
| Bledsko jezero | 6 |
| Kočevsko jezero | 7 |
| Družmirsko jezero | 7 |
| Perniško jezero | 8 |
| Jezero Kreda | 3 |
Important Links
- Challenge tool for logging your circumnavigations
- Honour Roll Iron Lake Challenge Slovenia
- Life Lake Museum Overall ranking of the challenge
- Life Museum (Overall Ranking – Timeless Challenge)
- Trees4Breeze – Reforestation and Forest Conservation, Funded by the Timeless Challenge
More Challenge Recommendations
 Iron Lake Challenge Austria |  Summit Challenge – How many peaks can you tackle? |  Lake Horizon Quest – Encircle ten lakes and bask in the light |
