There's an island located north west which pays homage to the television series "Lost". Whatever vehicle that you drive there will spontaneously explode, and on the island you'll find, close to the beach, a crashed plane, presumably the Oceanic 815, with the word "Search" scribed on the beach. Heading east down the southern coast, you'll come across the lost hatch and on the upper half of the island, north of a tower, you'll come across a soldier who makes an ominous clicking sound with clouds of black smoke following him, a reference to the smoke monster.