This story is almost forced to turn in to Comedy from here. I am trying to think of what could go next, and everything is funny.

From, at least being happy that no one can snatch his new chain, to remembering that there were bottles next to the "treasure" (I assume Precious Metals/Gems/Jewelry) and they turn out to be alcohol, which is the only thing he has to drink, to a Parrot coming up and talking to him, to the Island actually being a Giant Turtle. It all just gets funny from that point.

Adding that there was no chance of Rescue and no Water kind of limits the story-line and having him thinking about treasure rather than how he got there limits it even more. But someone will probably think of something that isn't just comical.