Jungle Marathon, BRAZIL
The six stages of the event vary in length, and competitors are expected to be self-sufficient throughout (with the exception of provided water), including food for six days, sufficient gear, hammock, and mosquito net.
The real challenge of the event lies not in the distance, but the humidity and dangerous jungle environment.
Where: Santarém, Brazil
Distance: 6 Stages. 254km
Terrain: Rough trail through rainforest