I would definately go for the Stingray City tour, it's amazing and a once in a lifetime experience. OK not to bust your bubble but the turtle farm is a place where they raise turtles for food! We had newlweds sitting at our dinner table that went there and she said it was depressing to see these turtle and know they'll be a meal someday! I did all the shore excursion bookings on my own, I didn't go through the ship, all my arrangements were made weeks before we sailed. If you need any info on what we did I'd be glad to help you out in any way, feel free to e-mail me!