World’s Deepest Marathon
Take on an extraordinary challenge: to run the deepest marathon ever run
| Date | Saturday 25th October, 2025 |
|---|---|
| Distance | Marathon |
| Location | Boliden Garpenberg |
| Town/City | Garpenberg, Sweden |
| Website | Visit website |
| Run For Charity |  Start Fundraising On GoFundMe |
This will be a true test of mental and physical resilience. Running a marathon is tough, but doing it 1,120 metres below sea level, in total silence and darkness, will push participants to their limits. This is about more than breaking records - it’s about proving what’s possible when we dare to push beyond our perceived boundaries and into the unknown.
