Crystal Reef was a city of the Mon Calamari species, located on the planet Dac.
The resort city known as Crystal Reef was built around 4 ABY. Its purpose was to serve as a vacation destination for the wealthiest individuals in the galaxy. Operating in the northern polar oceans of Dac, the city featured viewing platforms that allowed those aboard to observe magnificent icebergs and icecaps, in addition to the resort's numerous gambling opportunities. The Crystal Reef Amusement and Tourism Council was responsible for its operation.
Around 24 ABY, the Black Sun criminal Czethros set up a headquarters in Crystal Reef. His scheme involved utilizing the resort as a distribution center for his spice aimed at the affluent customers there. A group of Jedi Knights, including Anja Gallandro, intervened, thwarting his plans by eliminating Czethros and his associates and obliterating the stash of spice he had concealed within the neighboring polar ice formations.