In the beginning of the Evolution story, there is a small island just past the observation tower Kade tells you about. On it is a wrecked ship with a corpse inside. There are two P-90's inside next to it and several boxes are scattered over the island. 'Help!' is spelled out in rocks on the beach and this is the easiest way to spot the island itself. On a tree trunk near the left side of the island, is Wilson! The way to find this island is once you exit the observation tower and have found the small river, hop on the water scooter and jet out to the far end of the sea until you see a large black rock with green stuff all over it. When you reach the rock, turn around back toward the tower and somewhere to your right should be the island. If you have a hard time finding it, just go next to the rock and look around till you see an island with black dots on the beach. That's the island. The P-90's only have one or two clips in them so take them if you really want them. Good luck.