The Badwater 135 Ultramarathon undoubtedly can be described as "the world's toughest foot race". It is presented as a 217 km (135 miles) course starting at the Badwater Basin, in Death Valley, and ending at an elevation of 2548 m at Whitney Portal, the staging ground to Mount Whitney.
The annual event usually takes place in mid-July, when the weather conditions are most unbearable with temperatures reaching 54 °C. That's why very few people are capable of finishing this draining race. The hike between Badwater and Mount Whitney was first completed in 1969 by Jim Burnworth and Stan Rodefer from San Diego.
With the inception of the marathon in 1978, close to 100 runners run through the route that lies through landmarks with names like Furnace Creek, Mushroom Rock, Devil’s Golf Course, Salt Creek, Devil’s Cornfield, Panamint Springs, Stovepipe Wells, and more. The winners often finish the race in less than round the clock.
You can participate in the marathon by the invitation only.