Adventure corps by Badwater 135 started on July 23-25. Now on its 41st year with 22 countries. And 100 of the toughest athletes will compete agains the heat of death valley. A 135 miles nonstop run from death valley to mouth Whitney Portal of California, which mark the lowest elevation of north America 280′ (85m) below sea level. rising to a 8,300 (25030m) to the Portal of Mount Whitney.