World's Most Extreme Adventure Races

You are here

World's Most Extreme Adventure Races

From dizzying altitudes to scorching deserts, these 11 ultramarathons, ironman triathlons, and obstacle courses call for almost super human strength.

Jungle Marathon - Floresta National de Tapajos, Amazon Rainforest, Brazil

Held in Brazil’s Amazon rainforest in October, Jungle Marathon offers two races to choose from: 63 miles in four stages, or 150 miles in six stages. Racers are required to carry food and provisions, and race officials provide bottled water only at checkpoints. Youʼll face all the hazards the jungle has to offer (think: swamps, anacondas, and poisonous plants). You'll sleep in strung-up hammock between stages, with the only distractions being questioning your sanity, your aching body, and the jungle wildlife. (junglemarathon.com)

Badass Score: 8

Topics: 

Want more Men's Fitness?

Sign Up for our newsletters now.

more galleries

  • Killer Caffeine
    3.5 oz of powdered caffeine is as potent as 1,250 cans of Red Bull.
  • Hot Stuff
    10 insanely spicy recipes to will fill you up and boost your metabolism.
  • Eliminate "Moobs"
    The man boob elimination workout to build rock hard pecs.
  • No Rules
    Wear white after labor day, plus 9 more fashion rules to break.
comments powered by Disqus