The Alpine Seven

by Bernhard Hengl

long-distance open-water swimming

This is not just about swimming.

This is about Resilience & High Performance to raise awareness for people living with an illness.

The Alpine Seven is built around one belief: No one should hide because of a diagnosis.

The Alpine Seven

Seven complete crossings of the greatest alpine lakes in Austria, Germany, Switzerland and Italy. Over 330km of open water, swam 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.

Three lakes done. Four to go.

Lake Attersee — brutal elbow pain two and a half hours in. Keep going.

Lake Constance — 65km. 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.

Vision and Mission

The Alpine Seven is built around one belief: No one should hide because of a diagnosis.

But the hiding rarely stops when the treatment does.

The hardest part of a serious health crisis is rarely the treatment. It is what comes after. The moment when you are medically cleared, professionally back, and still do not recognise the person in the room. The moment nobody around you understands — because to them, the crisis is over.

Every crossing is a demonstration — that 5% capacity, applied with the right system, consistently produces what looks impossible from the outside. That the rebuild is possible. That the story does not end at the diagnosis.

The mission: raise visibility for people living with illness — and for what comes after it — through action that speaks louder than words.

“Resilience is not a feeling. It’s a decision made at the moment you most want to stop.”

The Lakes

A variety of beautiful 7 lakes located in Austria, Germany, Switzerland and Italy.

Distances range from 17 km to 73 km, allowing swimmers to progress through varying levels of difficulty and endurance. The lakes offer unique challenges, from cold water and altitude to unexpected wind patterns and wave conditions.

LagoMaggiore
lago1

Next: #4

LAgo Maggiore

Distance 66KM

66km. Non-stop. Without a wetsuit. Only one person has successfully attempted this crossing. June 27, 2026.

A Challenge with Purpose

This project exists because of a specific belief: the hardest part of illness isn’t always the physical pain. It’s passing the medical check, going back to work, and realising the person who used to inhabit your life has not returned with the body.

The Alpine Seven is a public demonstration that the rebuild is possible — and that it requires a system, not just willpower. Every stroke in open water is proof. Every crossing that looked impossible from the outside is evidence that the gap between cleared and rebuilt can be closed.

You were at the top before the diagnosis. You are back at work. The rebuild has barely started.

The seven crossings

Three done. Four to go. Follow the crossings as they happen.

1/7

Lake Attersee
Austria

Completed
June 20, 2025

Distance 20 KM

Completed Elbow pain at 2.5hrs. 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

Coming up
June 27, 2026

Distance 66 KM

 Only the 2nd person ever.

5/7

Lake Lucerne
Switzerland

Coming up
July 25 2026

Distance 39 KM

6/7

Lake Garda
Italy

coming up
Sept 12 2026

Distance 59 KM

Only the 2nd person ever.

7/7

Lake Geneva
Switzerland

coming up
June/July 2027

Distance 73 KM

About Bernhard Hengl

10-time Austrian water polo champion. Cancer survivor. Sales Manager. Father of five. Author of 'Against the Current.' He was at the top before the diagnosis. Treatment ended. He went back to work. The person hadn't returned yet. So he built a system for the rebuild — and then swam 330km of open water to prove it works. The Alpine Seven is the proof.

Donate to The Alphine Seven

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

NF Kinder

“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.

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