If you've got water and shade, someone knows where you are, you don't have any underlying health problems, and you're not exerting yourself, then any dry heat o

If you've got water and shade, someone knows where you are, you don't have any underlying health problems, and you're not exerting yourself, then any dry heat on earth is survivable. The saddest thing about cases like the Germans in Death Valley is how most of the mistakes were made before they even entered the park, and how easily they could have been fixed.