Sodwana Bay, in northern Maputaland, is home to some of the most southerly coral reefs in the world, courtesy of the Benguela Current that brings warm, clear water down from the tropics. As well as spectacular reef coral, you'll find all the pretty little guys. And the lady raggies that were partying down on the South Coast come up here to chill in the warm water, gestate their little sharklets and - possibly - gossip. We have it on good authority they don't knit or crochet. Sodwana is South Africa's most popular (read a tad crowded) dive destination, but it's great and the reefs are surprisingly untrashed. Further north, the reefs are no better than at Sodwana, but the diving is very uncrowded, very relaxed, very exclusive and a tad more pricey.