Arcadia

Arcadia is a United Nations Space Command colony. Described as a "tropical paradise", it is apparently a popular destination for tourists, and received many shipments from Harvest. .

Trivia

 * It is set to be a major plot element in Halo Wars, because of its great interest to the Covenant . A probable strategic point in the war. So it is likely the planet was glassed like Harvest.
 * It may have been named for the actual Arcadia, a region south of Greece in the Peloponnesus.