Excursion for family of four in Grand Caymen Islands cost a little under $300 total (89 per adult, 69 for kid, 3 and under free. Included Turtle Experience and swimming with sting rays! Turtle encounter was at a reservation and turtles are in captivity with nice and protective conditions. Then bus takes you to a ferry boat that is beautiful 25min trip out to the sand bars in the most clearest blue waters ive ever seen.
The sting rays are wild but friendly and "swarm " the groups but they are just looking for food which the tour boat employees provide seafood for us to feed them with.
All in all about 4-5 hr excursion. Well worth every penny if you are considering it. Experience of a lifetime for sure! Anytime you can spend time with wild exotic animals in nature it is rewarding and something you will always remember. 