The Destiny Islands are a group of islands that first appear in the original Kingdom Hearts title as the home of Sora, Riku, Kairi, Tidus, Wakka, and Selphie. This is the first world you can start playing in. It reappears in Kingdom Hearts: Chain of Memories, and it is playable in both Sora's and Riku's sides. In Kingdom Hearts II, however, it is only shown in cut scenes. As the home of the hero, it's quite a significant place in the game, and I'm sure we'll be seeing it again in the upcoming games.
Sotto il Sole means "under the sun" in Italian. I chose this name for the fanlisting because the islands are usually full of laughter and play. The inhabitants just love to run around on the beach and have a good time while basking in the sunlight. The reason I used the Italian translation of the phrase was because I think it sounds a lot prettier, and I wanted to give it a feeling of beauty as well.