Past Neptunes - Neptune Challenge

Past Events

Results from previous Neptune Challenges.

2026

Neptune Challenge 2026

Copenhagen · 6, 12, 24, 30 & 42 hours · 70 swimmers

See results

2025

Neptune Challenge 2025

Copenhagen · 6, 12, 24 & 30 hours · 36 swimmers

See results

2019

Neptune Challenge 2019

Copenhagen · 6, 12 & 24 hours · 24 swimmers

See results

Swim@neptunechallenge.dk

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Join swimmers from around the globe in this one-of-a-kind open water endurance challenge. Choose your level: 42, 30, 24, 12, or 6 hours of relentless swimming, completing 1.5 km every hour.

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