James Cracknell — Toughest Race On Earth With

The "Toughest Race" mentioned is the , a 251-km (approx. 156-mile) ultramarathon in the Sahara Desert.

The reference to a "paper" in relation to refers to an academic journal article titled "Exotic endurance: Tourism, fitness and the Marathon des Sables" by Debbie Lisle. The Academic Paper Toughest Race On Earth With James Cracknell

: Runners must carry all their own food and equipment for the duration of the six-day race in extreme desert temperatures. The "Toughest Race" mentioned is the , a 251-km (approx

: Published in the journal Environment and Planning D: Society and Space (2016), with an online version appearing in 2015. The "Toughest Race" mentioned is the

Exotic endurance: Tourism, fitness and theMarathon des Sables