Extreme Running: The Most Difficult Marathon Races
If you have both love forests and ultra marathons, then this is the perfect race for you. The Jungle Ultra Marathon takes place in the Peruvian cloud and rain forests. Its main obstacles are the 9,000 feet downhill terrain and 70 river crossings. You need to traverse all that in 90 degrees heat and 100 percent humidity. To make matters worse (or great to some) you need to be self-sufficient carrying with you your hammock and your supplies. The upside of this race is that you get to see some really beautiful virgin forests and also interact with the indigenous tribes in the area.