“We have a 5-gallon jug of water,” Keoni began, “and we’ve traveled approximately 15 miles.”

Despite the absence of flowing water in the fountains, there was no foul odor lingering in the air. Keoni and Kai stepped out of the car while Ray retrieved a flashlight from the glove compartment. He shone the light into the water, and aside from a few spots of algae growing the water seemed relatively sanitary. “We have a 5-gallon jug of water,” Keoni began, “and we’ve traveled approximately 15 miles. Judging by the water remaining in the jug I’d say we are averaging 4 miles a gallon.