Ahhhh! I just got back from a cruise with Royal Caribbean! We, of course, went to CoCo Cay. I thought about making and leaving a cache but didn't even know where to begin in getting permission... Oh well, I know I'll be back and next time I'll take my GPSr for sure! It's a great island, have some fun and make sure to wear sunscreen on your back while snorkeling out to the sunken plane.
xvart.