How do you get to the third island on Sims Castaway for PS2?

You have to make a raft and go from Pier Beach on the first island. You also have to go up to the big column things on pier beach (ancient pier) and inspect them. To build the raft you need the following: bamboo, vines, palm fronds, and 2 body skill points and 2 mechanical skill points. When you have these go to the ancient pier and select "craft raft" and then get in it. It won't let you go if your sim is unhappy so make sure all of their needs are green. You're off to the second island!