Risa was a pleasure planet that existed from at least the mid-22nd century right through to at least the late-24th century. (ENT: "Two Days and Two Nights"; TNG: "Captain's Holiday" ; DS9: "Let He Who Is Without Sin..." et al) Wrigley's pleasure planet was an example of a pleasure planet during the mid-23rd century. (TOS: "The Man Trap" ) Casperia Prime was another example of a pleasure planet during the late-24th century. It was described as being the "vacation capital of the Horvian Cluster" and "on par" with Risa. (DS9: "Change of Heart", "Inquisition")