In the small coastal village of Witsand, at the mouth of the Breede River in the Western Cape's Overberg region, sits Africa's first desalination plant powered entirely by solar energy. Witsand has a low-season population of only around 300 people, but that number swells to more than 3,000 during the busy summer tourist months, placing serious strain on a town with no major freshwater river or reliable aquifer of its own.