Introduction to Naughty Tom's Island Giant Raft: Get on a giant raft and sail to Naughty Tom's Island, a small island located in the middle of the American River. When the giant raft docks at the dock built by the pioneers, the visitor's adventure begins. In the dark Indian Joe Cave, the weak light is the only way forward, climb up to Naughty Tom's tree house, or go to the rock bunker for some reconnaissance.