The Alpine Seven

by Bernhard Hengl

long-distance open-water swimming

This is not just about swimming

The Alpine Seven was born from my battle with cancer. Today I swim for everyone life has pulled the ground out from under, and who is ready to swim again. Every lake is proof that you get further than you think. And every kilometre raises funds for NF Kinder.

SAVE THE DATE • AUG 21, 2027

THE ALPINE SEVEN
COMMUNITY CHALLENGE

Swim With Us. Make Your 5% Count.

WORK WITH ME • GEGEN DIE STRÖMUNG

WHEN LIFE PULLS
THE GROUND AWAY

For people who are ready to swim again. Start in Der Steg, my free community, or take your first stroke with Der erste Zug, my 30-day audio programme.

The Alpine Seven

The freshwater counterpart to the Ocean Seven.

OPEN WATER
0 km

NO WETSUIT
NO CURRENTS

Seven complete crossings of the greatest alpine lakes in Austria, Germany, Switzerland and Italy. 324 km of open water, swum non-stop, without a wetsuit.

Inspired by the Ocean Seven, the most demanding open-water challenge in the world, The Alpine Seven is its freshwater counterpart. No ocean currents. But cold water, altitude, unpredictable wind, and distances that have been completed by only a handful of people on earth.

FIVE LAKES DONE. TWO TO GO.

• Lake Attersee: brutal elbow pain two and
a half hours in. Kept going.
• Lake Constance: 65 km. First Austrian ever.
6th person on earth.
• Wörthersee: after a full week of gastroenteritis.
Started anyway. Not for records. Not for glory.
To prove in real conditions that the system works.
• Lago Maggiore: the two days before the swim
I was in a tough mental state. Started
anyway and found my rhythm to finish.
• Lake Lucerne: 32.4 km from Küssnacht
to Flüelen in 9 hours 50 minutes.

No one should hide because of a diagnosis

Vision and Mission

I know, because I did. In 2016 I got cancer. I went from Bundesliga water polo to a body that could barely walk 500 metres. I know what it means to live with an illness. The fear. The waiting. The fighting.

That is why this project exists. I started The Alpine Seven to raise awareness for people living with an illness. Today I swim for everyone life has pulled the ground out from under and who doesn’t know where to swim next. Each lake shows that with a goal and one stroke at a time, you get further than you think. And every crossing raises funds for NF Kinder, who care for children with neurofibromatosis and their families. 100% of all donations go directly to them.

Every crossing is a demonstration: endurance mindset and discipline, applied consistently, produce what looks impossible from the outside. Even at 5% capacity.

"Resilience is not a feeling. It's a decision made at the moment you most want to stop."

The Lakes

Seven lakes in Austria, Germany, Switzerland and Italy.

Distances range from 17 km to 70 km. Each lake brings its own challenge, from cold water and altitude to sudden wind and waves.

lucerna (1)
lake lucerne22

Next: #6

Walensee & Lake Zurich

Distance 70 KM

70 km. Non-stop. August/September 2027.

A Challenge with Purpose

MAKE 5% YOUR 100%
-> 5 %

Before I started Lake Constance, the odds of finishing were about 5%. 65 kilometres, non-stop, no wetsuit. I finished as the first Austrian ever.

That is the principle every crossing carries: Make 5% your 100%. Not talent. Not perfect conditions. A decision, repeated stroke by stroke.

Attersee with elbow pain from hour three. Wörthersee after a week of gastroenteritis. Maggiore after two of the hardest days in my head. Conditions are never perfect. You start anyway.

And every kilometre raises money for NF Kinder.

Conditions are never perfect. You start anyway.

“And every kilometre raises money for NF Kinder.”

The seven crossings

7 Lakes . 324 Kilometres . One Mission

Five done. Two to go. Follow the crossings as they happen

1/7

Lake Attersee
Austria

Completed
June 20, 2025

Distance 19 KM

Completed: Elbow pain at 2.5 hrs. Kept going.

2/7

Lake Constance
Austria/Germany

Completed
July 12, 2025

Distance 65 KM

Completed: First Austrian ever. 6th person on earth.

3/7

Wörthersee
Austria

Completed
Sept 6, 2025

Distance 17 KM

Completed: Full week of gastroenteritis beforehand. Started anyway.

4/7

Lago Maggiore
Italy/Switzerland

Completed
June 27, 2026

Distance 61.5 KM

Completed: 1st Austrian ever. 3rd person on earth.

5/7

Lake Lucerne
Switzerland

Completed
Sept 12, 2026

Distance 32.4 KM

Completed: Küssnacht to Flüelen in 9:50 h.

6/7

Walensee & Lake Zurich
Switzerland

Coming up
Aug/Sept 2027

Distance 70 KM

7/7

Lake Garda
Italy

Coming up
Aug/Sept 2028

Distance 59 KM

About Bernhard Hengl

10-time Austrian water polo champion. Cancer survivor. Father of five. Author of “Against the Current”. First Austrian ever to cross Lake Constance and Lago Maggiore.

Today Bernhard works with people whom life has pulled the ground out from under: after an illness, a job loss, a separation, or when it all simply got too much. Not therapy, not pep talks. A goal that feels like their own, a first stroke, and someone swimming alongside. The Alpine Seven is where he shows it works. In open water. In real conditions.

DONATE TO THE ALPINE SEVEN

“Your help goes to NF Kinder, so they can care for children and families affected by Neurofibromatosis.”

“We are a patient organization of those affected for those affected. Therefore, we know best what measures are necessary to improve the quality of life of people with NF in Austria.

100% of all donations go directly

THE 5% LETTER

Open water, goals & endurance mindset in your inbox

@bernhardhengl

Bernhard’s weekly letter in English for everyone life has pulled the ground out from under: how to find a goal that feels like your own, take the first stroke, and keep going. Plus updates from The Alpine Seven.

Lieber auf Deutsch? Jeden Samstag kommt der Samstagsbrief auf Substack.

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