Often overlooked, Tonga’s mid-island group, Ha’apai, comprises 62 islands (only 20 are inhabited), hides some of the most beautiful white sand beaches in the world, and cradles famous tales of nautical misadventures in its unassuming waters. Ha’apai, a History For instance, the mutiny, as in the Mutiny on the Bounty, occurred  in 1789, just between the…