vicarage
Active member
The Garpenberg mine marathon is held 1120m below Sweden, in 24 degrees and 72% humidity. Lovely. To prepare, he ran with his headlamp and helmet in the summer heat, getting some funny looks!
www.theguardian.com
Experience: I won the world’s deepest underground marathon
I tried not to think about the 1,300 metres of solid rock over my head