South Africa 's sand dunes have been supporting a thriving ecosystem for centuries . Mining companies are eager to dig inside them for the minerals they need . They are campaigning for the preservation of the massive dunes . Some believe that eco - tourism can be a valuable alternative to mining .
South Africa 's sand dunes have been supporting a thriving ecosystem for centuries . Mining companies are eager to dig inside them for the minerals they contain . Environmentalists are campaigning for the protection of the massive dunes . Some argue that eco-tourism can be a valuable alternative to mining .