On the very southern tip of the island is a lagoon surrounded by keys and a small beach infested with dragons, crabs, and irritated junkmen. These privateers will attack you if you come near their loot. Also, beware of your surroundings as the dragons have long patrol routes and may happen upon you if you're -- say -- taking a photo of Lilia City in the sunset.
Also, keep in mind that while you can fly out into the lagoon to sit your dragon on the keys, there's nothing of interest out there.