Compared to most planets in the Known Universe in Frank Herbert's "Dune" saga, the lush oceanic planet of Caladan feels like paradise. The environmental facets of this bountiful planet are often used to evoke sharp contrasts with Giedi Prime or Arrakis, as the latter feature rough terrains and near-inhospitable conditions that have shaped its inhabitants for millennia. While Giedi Prime is a bleak, hyper-industrialist dystopia, the dunes of Arrakis challenge every invader staking a claim on the planet's resources, its sacred secrets only privy to the mysterious Fremen. In stark contrast to these harsh environments, Caladan has always been associated with a flourishing economy and general prosperity, its overabundance of water emerging as a mythic dream to those who view it as a luxury instead of a necessity.

Castle Caladan is the nexus of Paul Atreides' home planet; it is an enduring symbol of the Atreides stronghold, whose rule...