Correction: You only hope you are just in the desert for 3/4 of 1 day.

Even here where we are far from deserts everybody I know carries more than 4 liters of drinking water in their car.
They usually take a case of small bottles of spring water, but cheap cusses like me just fill up old 2 liter pop bottles with tap water.

_________________________
May set off to explore without any sense of direction or how to return.