We were on the Thanksgiving Magic cruise. I was snorkeling at Castaway Cay with my 18yo son and 12yo daughter. We had planne don swimming out to see the statues and other items submerged. While out there we came across the barracuda mentioned in other posts. It was under one of the white buoys. I stopped my kids and said we would take the long way around. About a minute later it was in front of us, but this time in open water. I was wearing my gold necklace and am not sure if it was attracted to it. We are from South Florida and spend so the initial encounter did not faze me, but when it appeared a second time I have to say I was concerned. 
We decided to turn back and on the way in came across a sea turtle. It must have been @ 100 pounds. We were able to swim along side (from a distance) while it swam and ate grass. This was an amazing experience and something we will talk about for a while. I did not realize that something that size would be able to get into the area. I had read about barracudas, sharks, etc. but never turtles.
Just thought I would share this and wanted to see if anyone else had experienced this.

We decided to turn back and on the way in came across a sea turtle. It must have been @ 100 pounds. We were able to swim along side (from a distance) while it swam and ate grass. This was an amazing experience and something we will talk about for a while. I did not realize that something that size would be able to get into the area. I had read about barracudas, sharks, etc. but never turtles.
Just thought I would share this and wanted to see if anyone else had experienced this.