The Badwater Ultramarathon is a 135-mile (217 km) ultramarathon race starting at −282 feet (−86 m) below sea level in the Badwater Basin, in California's Death Valley, and ending at an elevation of 8,360 feet (2,550 m) at Whitney Portal, the trailhead to Mount Whitney. It takes place annually in mid-July when the weather is the most extreme and temperatures can reach 130 °F (54 °C) during the day at Badwater Basin.