Wörthersee Swim-Austria takes place on Fri, Sep 4, 2026 in Klagenfurt am Wörthersee, Austria. The main route is 34 km.
- Date
- Fri, Sep 4, 2026
- Start
- Klagenfurt am Wörthersee 🇦🇹
- Distance
- 34 km
- Level
- Open to all
The Wörthersee Swim Austria is an open-water swimming competition featuring multiple distances up to a challenging 34-kilometer no-limit swim across Lake Wörthersee.
Official event pageWhat this race demands
The Wörthersee Swim-Austria is an extreme ultra-distance open-water event spanning 34 kilometers across Lake Wörthersee, requiring exceptional physiological and psychological endurance.
Ultra-Distance Endurance
Covering 34 kilometers in open water demands profound aerobic capacity and the ability to sustain continuous swimming over many hours.
Sighting and Navigation
Swimming across Lake Wörthersee requires consistent sighting proficiency and mental resilience to manage pacing over an extended duration without lane lines.
Given the ultra-distance duration exceeding multiple hours, athletes must consume 60 to 90 grams of carbohydrates per hour through liquid nutrition or approved support provisions.
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