Caelum isn't a single piece of land. In fact, it is made up of a total of 69 islands, most of which are too small to fit into the map. The islands are pretty tropical, with larger island carrying varying form of civilized development. Due to this, Caelum is a popular place for trading companies and of course, pirates. Be careful when traveling in Caelum. You never know what kind of company you would meet in transit.